Journal ArticleDOI
Ultra-wideband planar LPDA antenna with mode converter balun
TLDR
In this article, a low-length (10 mm) frequency-independent (4.5 GHz) beamforming balun was proposed for planar log-periodic dipole array antenna (PLPDA).Abstract:
A new balun used for feeding a planar log-periodic dipole array antenna (PLPDA) is proposed. This balun, which is based on mode conversion, converts gradually the transmission mode from quasi- TEM (coaxial cable) to full TEM (balanced line), with an accessible excitation current property (ECP), which is not achievable in classical feeding techniques (infinite or self balun). To validate this approach, an ultra-wideband (UWB) PLPDA antenna was designed with these balun structures for operating in the L and S bands (1-4 GHz) and the results were compared in terms of reflection coefficient and radiation pattern. A PLPDA antenna with a mode converter balun was fabricated. Results show that the proposed balun is a low length (10 mm) frequency-independent (4.5 GHz based on |S11|<-10 dB) device useful for feeding the UWB PLPDA antenna. Moreover, antenna's ECP can be modified, which is necessary for phase centre variation compensation.read more
Citations
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Journal ArticleDOI
Compact log-periodic dipole array antenna with bandwidth-enhancement techniques for the low frequency band
TL;DR: In this paper, a planar log-periodic dipole array (LPDA) antenna operating from 0.55 to 9 GHz with high measured gain is proposed to be implemented in a reverberation chamber as a source antenna.
Journal ArticleDOI
Subsectional Tapered Fed Printed LPDA Antenna With a Feeding Point Patch
Goksenin Bozdag,Alp Kustepeli +1 more
TL;DR: In this paper, a log-periodic dipole array (LPDA) antenna operating between 1.1 and 13.8 GHz with and an average peak realized gain of 5.2 dB is presented.
Journal ArticleDOI
Wideband microstrip series‐fed magnetic dipole array antenna
Lei Yang,Jin-Dong Zhang,Wen Wu +2 more
TL;DR: In this article, a wideband microstrip series-fed magnetic dipole array antenna is proposed to achieve both wide bandwidth and high gain, which is suitable for applications such as wideband high gain wireless communications.
Journal ArticleDOI
Design of Novel Broadband Endfire Dipole Array Antennas
TL;DR: In this paper, a broadband end-fire dipole array antenna is presented, which is realized as a series-fed structure and four dipole elements on the same printed circuit board, and measured results show that the antenna has an impedance bandwidth of 70.5% for voltage standing wave ratio (VSWR), a gain of 3.43-6.78
Journal ArticleDOI
Wideband and High-Gain Uniform Circular Array With Calibration Element for Smart Antenna Application
TL;DR: In this paper, a wideband and high gain uniform circular array with calibration element for smart antenna application is presented, which can provide an impedance bandwidth of 38.3% (3.95-5.82 GHz) and a radiation pattern bandwidth of 12.8% (4.4-5 GHz).
References
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Book
Antenna Theory: Analysis and Design
TL;DR: The most up-to-date resource available on antenna theory and design as mentioned in this paper provides an extended coverage of ABET design procedures and equations making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Journal ArticleDOI
A Transmission Line Taper of Improved Design
TL;DR: In this article, the Dolph-Tchebycheff transmission-line taper has been considered and its performance has been compared with that of other tapers, and a table of values of a transcendental function used in the design of these tapers is given.
Proceedings ArticleDOI
Broadband logarithmically periodic antenna structures
R. DuHamel,D. Isbell +1 more
TL;DR: Antenna structures for which the input impedance and radiation patterns vary periodically with the logarithm of the frequency are described, the result being an antenna forwhich the impedance and patterns are essentially independent of frequency over bandwidths greater than ten to one.
Analysis and design of the log-periodic dipole antenna
TL;DR: In this article, a mathematical analysis of the logarithmically periodic dipole class of frequency independent antennas, which takes into account the mutual coupling between dipole elements, is described.
Book
A Handbook for Emc Testing and Measurement
TL;DR: In this article, the authors discuss the nature of EMC standards world wide and describe in detail testing methods and their conduct and accuracy in addition to standard EMC testing, topics including electrostatic discharge, nuclear electromagnetic pulse and lightning are also discussed.