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Design Of A Miniaturized Wideband Microstrip Balun At 85 Ghz
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Book Synopsis Design of a Miniaturized Wideband Microstrip Balun at 8.5 GHz by : Jaidev Sharma
Download or read book Design of a Miniaturized Wideband Microstrip Balun at 8.5 GHz written by Jaidev Sharma and published by . This book was released on 2008 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project covers the development of a miniaturized wideband microstrip balun that operates at 8.5 GHz center frequency and a bandwidth of 4GHz. This project will find various applications in the wireless industry such as push pull configuration and mixers. The most important feature of this design is its compact size and wideband characteristics. Advanced Design System (ADS), a powerful electronic design automation system, designed by Agilent Technology was used for designing and simulating this broadband balun circuit. This design will provide coupling of 15 dB at both ports and a phase difference of 180 degrees between the two output ports over a broad band of frequencies.
Book Synopsis Design of Miniaturized Microstrip Balun at 2.44 GHz by : Gopal Thakkar
Download or read book Design of Miniaturized Microstrip Balun at 2.44 GHz written by Gopal Thakkar and published by . This book was released on 2002 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory, Design and Simulation of Even Order Wideband Microstrip Balun Circuits at 5 GHz for Wireless Applications by : Praveen Veeranki Krishna
Download or read book Theory, Design and Simulation of Even Order Wideband Microstrip Balun Circuits at 5 GHz for Wireless Applications written by Praveen Veeranki Krishna and published by . This book was released on 2016 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this project is to start from first principles and design broadband Microstrip Balun circuits, at a center frequency of 5 GHz, for wireless applications. Typically, design of broadband multi-section couplers is limited to odd order structures. However, the current work is in a newer direction with even order design specification, which required us to start from fundamental multi-section theory. Starting with fundamental theory, we arrived at 2 and 4 section wideband balun designs, which show good amplitude and phase balance. The fabrication of the balun structures that were designed in this work will be carried out in the next continuing project by future graduate students.
Book Synopsis Design, Simulation, Fabrication and Testing of Improved Wideband Microstrip Balun Circuit Operating from 1-12 GHz by : Chandra Anusha Kotagiri
Download or read book Design, Simulation, Fabrication and Testing of Improved Wideband Microstrip Balun Circuit Operating from 1-12 GHz written by Chandra Anusha Kotagiri and published by . This book was released on 2011 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the project is to design, fabricate and test a broadband micro strip balun to operate at a center frequency of 5 GHz and with a bandwidth range of 1-12 GHz. A balun circuit is used in commercial applications such as cellular telephones, high definition television and other circuits, which receives a single-ended input signal to generate an amplified differential signal with 180° of phase difference, with low VSWR at the input and output ports. The simulation of the design was done using the Agilent Advanced Design System (ADS) software. The circuit was then fabricated in microstrip, and the simulated results demonstrate high amplitude, phase balance, and low VSWR over the operating frequency range. The measured results also demonstrate good amplitude and phase balance, thought the VSWR values are on the high side, and future work will focus on further improvement in performance.
Book Synopsis Design,simulation and Fabrication of Improved Wideband Microstrip Balun Circuit at 5 Ghz by : Jizhen Tang
Download or read book Design,simulation and Fabrication of Improved Wideband Microstrip Balun Circuit at 5 Ghz written by Jizhen Tang and published by . This book was released on 2009 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design and Simulation of Improved Wideband Microstrip Balun Circuits at 8GHz by : Khushboo Gandhi
Download or read book Design and Simulation of Improved Wideband Microstrip Balun Circuits at 8GHz written by Khushboo Gandhi and published by . This book was released on 2008 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design, Simulation, Fabrication and Testing of Improved Hybrid Wideband Microstrip Balun Circuits at 2.4 GHz by : Preeti Leela Nelapati
Download or read book Design, Simulation, Fabrication and Testing of Improved Hybrid Wideband Microstrip Balun Circuits at 2.4 GHz written by Preeti Leela Nelapati and published by . This book was released on 2010 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulated and Experimental Testing of Improved Wideband Microstrip Balun Circuit at 5 GHz by : Elizabeth Kelangi
Download or read book Simulated and Experimental Testing of Improved Wideband Microstrip Balun Circuit at 5 GHz written by Elizabeth Kelangi and published by . This book was released on 2010 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the project are to simulate and test a broadband microstrip balun to operate at a center frequency of 5 GHz and 50% bandwidth. The balun design finds extensive applications in the modern wireless communications particularly in accomplishing frequency conversion mixers to make cellular phone and data transmission networks possible. They are used to link symmetrical (balanced) circuit to asymmetrical (unbalanced) circuit in design of mixers and push pull amplifiers. The simulation of the circuit is done in Advanced Design System (ADS) software. The balun is designed to convert signals from a single-ended, unbalanced mode to a balanced mode, having two signals of equal balance impedance but shifted 180-degree in phase over the specified frequency range with minimum loss and low voltage standing wave ratio (VSWR). The goals of the design are to achieve high phase, amplitude balance and low VSWR with good performance results.
Book Synopsis Verification, Fabrication and Testing of Even Order Broadband Microstrip Balun Circuits at 5 GHz for Wireless Applications by : Sujeet Bagade
Download or read book Verification, Fabrication and Testing of Even Order Broadband Microstrip Balun Circuits at 5 GHz for Wireless Applications written by Sujeet Bagade and published by . This book was released on 2016 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project is a follow-on from earlier work to design and simulate broadband Microstrip Balun circuit at a center frequency of 5 GHz while meeting the specifications for wideband wireless applications. The design of these even order broadband multi-section balun couplers was based on fundamental multi-section theory. Specifically, this project focuses on the verification of the developed designs, fabrication and experimental testing of their microwave properties. The designed circuits were fabricated over microstrip substrate and the characteristic values of the fabricated circuit were measured and compared with the simulated values to verify the specifications of fabricated circuit.
Book Synopsis Optimized Design, Simulation and Testing of Broadband Microstrip Balun Circuit at 5 GHz by : Sayidas Mallesha Babu
Download or read book Optimized Design, Simulation and Testing of Broadband Microstrip Balun Circuit at 5 GHz written by Sayidas Mallesha Babu and published by . This book was released on 2014 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this project is to design, simulate, fabricate and test a broadband microstrip balun circuit at a center frequency of 5 GHz. For this to be accomplished a proper design is selected by the combination of various passive microwave circuit elements to obtain the best results ,which means an acceptable magnitude and phase balance between the output signals under consideration in the balun circuit . Throughout the length of this document, the basis of balun circuit, implementing the optimized balun circuit and the practical and theoretical results will be discussed.
Book Synopsis Realization of Miniaturized Multi-/wideband Microwave Front-ends by : Khair Ayman Al Shamaileh
Download or read book Realization of Miniaturized Multi-/wideband Microwave Front-ends written by Khair Ayman Al Shamaileh and published by . This book was released on 2015 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ever-growing demand toward designing microwave front-end components with enhanced access to the radio spectrum (e.g., multi-/wideband functionality) and improved physical features (e.g., miniaturized circuitry, ease and cost of fabrication) is becoming more paramount than ever before. This dissertation proposes new design methodologies, simulations, and experimental validations of passive front-ends (i.e., antennas, couplers, dividers) at microwave frequencies. The presented design concepts optimize both electrical and physical characteristics without degrading the intended performance. The developed designs are essential to the upcoming wireless technologies. The first proposed component is a compact ultra-wideband (UWB) Wilkinson power divider (WPD). The design procedure is accomplished by replacing the uniform transmission lines in each arm of the conventional single-frequency divider with impedance-varying profiles governed by a truncated Fourier series. While such non-uniform transmission lines (NTLs) are obtained through the even-mode analysis, three isolation resistors are optimized in the odd-mode circuit to achieve proper isolation and output ports matching over the frequency range of interest. The proposed design methodology is systematic, and results in single-layered and compact structures. For verification purposes, an equal split WPD is designed, simulated, and measured. The obtained results show that the input and output ports matching as well as the isolation between the output ports are below –10 dB; whereas the transmission parameters vary between –3.2 dB and –5 dB across the 3.1–10.6 GHz band. The designed divider is expected to find applications in UWB antenna diversity, multiple-input-multiple-output (MIMO) schemes, and antenna arrays feeding networks. The second proposed component is a wideband multi-way Bagley power divider (BPD). Wideband functionality is achieved by replacing the single-frequency matching uniform microstrip lines in the conventional design with NTLs of wideband matching nature. To bring this concept into practice, the equivalent transmission line model is used for profiling impedance variations. The proposed technique leads to flexible spectrum allocation and matching level. Moreover, the resulting structures are compact and planar. First, the analytical results of three 3-way BPDs of different fractional bandwidths are presented and discussed to validate the proposed approach. Then, two examples of 3- and 5-way BPDs with bandwidths of 4–10 GHz and 5–9 GHz, respectively, are simulated, fabricated, and measured. Simulated and measured results show an acceptable input port matching of below –15 dB and –12.5 dB for the 3- and 5-way dividers, respectively, over the bands of interest. The resulting transmission parameters of the 3- and 5-way dividers are –4.77±1 dB and –7±1 dB, respectively, over the design bands; which are in close proximity to their theoretical values. The proposed wideband BPD dividers find many applications in microwave front-end circuitry, especially in only-transmitting antenna subsystems, such as multi-/broad-cast communications, where neither output ports matching nor isolation is a necessity. The third proposed component is a 90° hybrid branch-line coupler (BLC) with multi-/wideband frequency matching. To obtain a multi-frequency operation, NTLs of lengths equal to those in the conventional design are incorporated through the even- and odd-mode analysis. The proposed structure is relatively simple and is fabricated on a single-layered substrate. Two design examples of dual-/triple-frequency BLCs suitable for GSM, WLAN, and Wi-Fi applications are designed, fabricated and evaluated experimentally to validate the proposed methodology. The same concept is extended to realize a broadband BLC with arbitrary coupling levels. Based on how impedances are profiled, the fractional bandwidth of a single-section 90° 3-dB BLC is extended to 57%, and the realization of broadband BLCs with predefined coupling levels is also achieved. Furthermore, higher-order harmonics are suppressed by enforcing BLC S-parameters to match design requirements only at a given frequency range. Three examples of 3-dB, 6-dB, and 9-dB BLCs are demonstrated at 3 GHz center frequency. The obtained analytical response, EM simulations, and measurements justify the design concept. The fourth proposed component is an UWB antipodal Vivaldi antenna (AVA) with high-Q stopband characteristics based on compact electromagnetic bandgap (EBG) structures. First, an AVA is designed and optimized to operate over an UWB spectrum. Then, two pairs of EBG cells are introduced along the antenna feed-line to suppress the frequency components at 3.6–3.9 and 5.6–5.8 GHz (i.e., WiMAX and ISM bands, respectively). Simulated and measured voltage standing wave ratio (VSWR) are below 2 for the entire 3.1–10.6 GHz band with high attenuation at the two selected sub-bands. This simple yet effective approach eliminates the need to deform the antenna radiators with slots/parasitic elements or comprise multilayer substrates.
Book Synopsis Distributed Power Amplifiers for RF and Microwave Communications by : Narendra Kumar
Download or read book Distributed Power Amplifiers for RF and Microwave Communications written by Narendra Kumar and published by Artech House. This book was released on 2015-06-01 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new resource presents readers with all relevant information and comprehensive design methodology of wideband amplifiers. This book specifically focuses on distributed amplifiers and their main components, and presents numerous RF and microwave applications including well-known historical and recent architectures, theoretical approaches, circuit simulation, and practical implementation techniques. A great resource for practicing designers and engineers, this book contains numerous well-known and novel practical circuits, architectures, and theoretical approaches with detailed description of their operational principles.
Book Synopsis Coplanar Waveguide Circuits, Components, and Systems by : Rainee N. Simons
Download or read book Coplanar Waveguide Circuits, Components, and Systems written by Rainee N. Simons and published by John Wiley & Sons. This book was released on 2004-04-07 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-date coverage of the analysis and applications of coplanar waveguides to microwave circuits and antennas The unique feature of coplanar waveguides, as opposed to more conventional waveguides, is their uniplanar construction, in which all of the conductors are aligned on the same side of the substrate. This feature simplifies manufacturing and allows faster and less expensive characterization using on-wafer techniques. Coplanar Waveguide Circuits, Components, and Systems is an engineer's complete resource, collecting all of the available data on the subject. Rainee Simons thoroughly discusses propagation parameters for conventional coplanar waveguides and includes valuable details such as the derivation of the fundamental equations, physical explanations, and numerical examples. Coverage also includes: Discontinuities and circuit elements Transitions to other transmission media Directional couplers, hybrids, and magic T Microelectromechanical systems based switches and phase shifters Tunable devices using ferroelectric materials Photonic bandgap structures Printed circuit antennas
Download or read book Antennas written by Yi Huang and published by John Wiley & Sons. This book was released on 2008-09-15 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical, concise and complete reference for the basics of modern antenna design Antennas: from Theory to Practice discusses the basics of modern antenna design and theory. Developed specifically for engineers and designers who work with radio communications, radar and RF engineering, this book offers practical and hands-on treatment of antenna theory and techniques, and provides its readers the skills to analyse, design and measure various antennas. Key features: Provides thorough coverage on the basics of transmission lines, radio waves and propagation, and antenna analysis and design Discusses industrial standard design software tools, and antenna measurement equipment, facilities and techniques Covers electrically small antennas, mobile antennas, UWB antennas and new materials for antennas Also discusses reconfigurable antennas, RFID antennas, Wide-band and multi-band antennas, radar antennas, and MIMO antennas Design examples of various antennas are provided Written in a practical and concise manner by authors who are experts in antenna design, with experience from both academia and industry This book will be an invaluable resource for engineers and designers working in RF engineering, radar and radio communications, seeking a comprehensive and practical introduction to the basics of antenna design. The book can also be used as a textbook for advanced students entering a profession in this field.
Book Synopsis Broadband Planar Antennas by : Zhi Ning Chen
Download or read book Broadband Planar Antennas written by Zhi Ning Chen and published by John Wiley & Sons. This book was released on 2006-05-01 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for wireless communications has revolutionised the lifestyle of today’s society and one of the key components of wireless technology is antenna design. Broadband planar antennas are the newest generation of antennas boasting the attractive features required, such as broad operating bandwidth, low profile, light weight, low cost and ease of integration into arrays or Radio Frequency (RF) circuits, to make them ideal components of modern communications systems. Research into small and broadband antennas has been spurred by the rapid development of portable wireless communication devices such as cell phones, laptops and personal digital assistants. This all-encompassing volume, Broadband Planar Antennas: Design and Applications, systematically describes the techniques for all planar antennas from microstrip patch antennas, suspended plate antennas and planar inverted-L/F antennas to planar dipole antennas. Also discussed are some of the most recent outcomes such as broadband antenna issues in promising ultra-wideband applications. Clearly describes the fundamentals of planar antennas and categorises them according to their radiation characteristics Introduces the advanced progress in broadband planar antennas for modern wireless communications Includes a wealth of case studies, design guidelines, figures and tables This text is essential reading for antenna, RF and microwave engineers and manufacturers within the telecommunications industry. Its highly accessible approach will also appeal to researchers, postgraduate students and academic lecturers.
Book Synopsis RF Circuit Design by : Christopher Bowick
Download or read book RF Circuit Design written by Christopher Bowick and published by Elsevier. This book was released on 2014-06-28 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential reading for experts in the field of RF circuit design and engineers needing a good reference. This book provides complete design procedures for multiple-pole Butterworth, Chebyshev, and Bessel filters. It also covers capacitors, inductors, and other components with their behavior at RF frequencies discussed in detail. Provides complete design procedures for multiple-pole Butterworth, Chebyshev, and Bessel filters Covers capacitors, inductors, and other components with their behavior at RF frequencies discussed in detail
Book Synopsis Ultrawideband Antennas by : Daniel Valderas
Download or read book Ultrawideband Antennas written by Daniel Valderas and published by World Scientific. This book was released on 2011 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrawideband (UWB) technology, positioned as the cutting edge of research and development, paves the way to meet the emerging demands set by broadband wireless applications, such as high-speed data transmission, medical imaging, short-range radars, electromagnetic testing, etc. This breathtaking resource builds upon the basics of UWB technology to provide a complete compilation of figures of merit along with a vital state-of-the-art of the different antenna alternatives that are to be employed according to the specific application. Without excessive recourse to mathematics, this volume emphasizes on the UWB antenna design and equips readers with practical prediction techniques based on simple formulas and models. The big picture of UWB antenna technology would not be complete without addressing its applications, and this will serve to provide consultants with key clues for slot market searching. Containing over 150 supporting illustrations and figures, this comprehensive overview of UWB technology, antenna design and applications is a vital source of information and reference for R&D organizations, researchers, practitioners, consultants, RF professionals and communication engineers.
