Open AccessDOI
Improved bandwidth of microstrip antennas using parasitic elements
C. Wood
- Vol. 127, Iss: 4, pp 231-234
TLDR
In this paper, a method for doubling the bandwidth of rectangular microstrip patch antennas by locating capacitively excited λ m ��/4 short circuit parasitic elements at their radiating edges is described.Abstract:
A method is described of doubling the bandwidth of rectangular microstrip patch antennas by locating capacitively excited λ
m
/4 short circuit parasitic elements at their radiating edges. The antenna characteristics are explained in terms of an antiphase mode of a pair of coupled resonators, and it is shown that the bandwidth improvement is independent of the coupling capacitance. Experimental results are presented for both linearly and circularly polarised antennas which support the theoretical predictions.read more
Citations
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Journal ArticleDOI
Broad-band microstrip antennas using additional resonators gap-coupled to the radiating edges
Girish Kumar,K. C. Gupta +1 more
TL;DR: In this paper, a method for increasing the bandwidth of microstrip patch antennas by incorporating two additional resonators which are gap-coupled to the radiating edges of a rectangular patch is described.
Book
Broadband Planar Antennas: Design and Applications
Zhi Ning Chen,M.Y.W. Chia +1 more
TL;DR: In this article, the authors present an overview of the most important features of a planar antenna and its application in computer applications. But, they do not discuss how to improve the performance of these antennas.
Journal ArticleDOI
Nonradiating edges and four edges gap-coupled multiple resonator broad-band microstrip antennas
Girish Kumar,K. C. Gupta +1 more
TL;DR: In this article, two novel configurations for increasing the impedance bandwidth of the microstrip patch antennas are described, one of which uses two additional resonators which are gap-coupled to the nonradiating edges of a rectangular patch, whereas in the second case, four extra resonators are gap coupled to the four edges of the rectangular patch.
Journal ArticleDOI
Analysis and design of L-probe proximity fed-patch antennas
TL;DR: In this article, the effects of geometric parameters on the characteristics of the L-probe patch antenna are extensively studied and the variation of input impedance at resonance with different geometric parameters is plotted on a Smith chart.
Patent
Chassis-excited antenna apparatus and methods
TL;DR: In this article, a distributed loop antenna configuration is used within a handheld mobile device (e.g., cellular telephone), where the antenna comprises two radiating elements: one configured to operate in a high frequency band and the other in a low frequency band.
References
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Journal ArticleDOI
Theory and experiment on microstrip antennas
Y.T. Lo,D. Solomon,W. Richards +2 more
TL;DR: In this article, a simple theory based on the cavity model was developed to analyze microstrip antennas, and the theoretically predicted radiation patterns and impedance loci closely agree with those measured for many antennas of various shapes and dimensions investigated thus far.
Journal ArticleDOI
Conformal microstrip antennas and microstrip phased arrays
TL;DR: In this paper, a new class of antennas using microstrips to form the feed networks and radiators is presented in this communication, which have four distinct advantages: 1) cost, 2) performance, 3) ease of installation, and 4) low profile conformal design.