Journal ArticleDOI
Circularly polarised microstrip antenna with a tuning stub
Kin-Lu Wong,Yi-Fang Lin +1 more
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TLDR
In this paper, a simple circular polarisation (CP) design of microstrip antennas using a tuning stub is proposed and studied, and it is also demonstrated that, by applying this CP design method to a circular microstrip patch with a cross slot having equal slot lengths, a compact circularly-polarised microstrip antenna can easily be implemented, with much more relaxed manufacturing tolerances as compared to the case of using a cross-slot of unequal slot lengths.Abstract:
A simple circular polarisation (CP) design of microstrip antennas using a tuning stub is proposed and studied. It is also demonstrated that, by applying this CP design method to a circular microstrip patch with a cross slot having equal slot lengths, a compact circularly-polarised microstrip antenna can easily be implemented, with much more relaxed manufacturing tolerances as compared to the case of using a cross slot of unequal slot lengths. Details of the antenna designs are described, and experimental results are presented and discussed.read more
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Compact and Broadband Microstrip Antennas
TL;DR: In this paper, the authors present an overview of the most recent advances in regular-size Dual-Frequency Antennas and their application in a wide range of applications, including: 1.1 Introduction.
Journal ArticleDOI
Asymmetric-Circular Shaped Slotted Microstrip Antennas for Circular Polarization and RFID Applications
TL;DR: In this article, a single-feed configuration based asymmetric-circular shaped slotted square microstrip patches are adopted to realize the compact circularly polarized microstrip antennas with slits.
Journal ArticleDOI
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TL;DR: In this article, a single-fed miniaturized circularly polarized microstrip patch antenna is designed and experimentally demonstrated for industrial-scientific-medical (2.4-2.48 GHz) biomedical applications.
Journal ArticleDOI
A Compact Circularly Polarized Cross-Shaped Slotted Microstrip Antenna
TL;DR: In this article, a compact cross-shaped slotted microstrip patch antenna is proposed for circularly polarized (CP) radiation, where a symmetric, cross shaped slot is embedded along one of the diagonal axes of the square patch for CP radiation and antenna size reduction.
Journal ArticleDOI
On the circular polarization operation of annular-ring microstrip antennas
Hua-Ming Chen,Kin-Lu Wong +1 more
TL;DR: In this paper, an annular-ring microstrip antenna with a pair of inserted slits at its fundamental TM/sub-11/ mode is proposed and experimentally investigated and two examples of the proposed antenna fed using a microstrip line at the inner and outer patch boundaries are studied.
References
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Journal ArticleDOI
A circularly polarized small-size microstrip antenna with a cross slot
TL;DR: In this paper, a new, circularly polarized small-size microstrip antenna using a proximity coupled feed method is proposed, and the measured results verify the circular polarization and the antenna radius was reduced by about 36% by using the slot lengths which are nearly equal to the diameter of the circular patch antenna.
Journal ArticleDOI
Small dual-frequency microstrip antenna with cross slot
Kin-Lu Wong,Kai-Ping Yang +1 more
TL;DR: In this article, a single-feed, reduced-size dual-frequency rectangular microstrip antenna with a cross slot of equal length is presented, where the frequency ratio is mainly determined by the aspect ratio of the rectangular patch, and the reduction in the two operating frequencies is achieved by cutting a cross-slot in the microstrip patch.
Journal ArticleDOI
Tuning stubs for microstrip-patch antennas
M. du Plessis,J.H. Cloete +1 more
TL;DR: In this article, a method for simultaneous tuning of both the resonant frequency and reflection coefficient of a coaxially fed rectangular-microstrip patch is described, where the use of two tuning stubs allows independent adjustment of the effective patch length and the effective position of the feed point.
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