A Circularly Polarized Ring-Antenna Fed by a Serially Coupled Square Slot-Ring

A Circularly Polarized Ring-Antenna Fed by a Serially Coupled Square Slot-Ring

An aperture-coupled ring-antenna is presented in this communication. The antenna is fed by a microstrip line through a unique aperture configuration. The aperture contains a square slot ring with four short branch slots protruding toward the center of the ring. It is studied that axial-ratio and ret...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2012-02, Vol.60 (2), p.1132-1135
Hauptverfasser: The-Nan Chang, Jyun-Ming Lin, Chen, Y. G.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna measurements
Antennas
Apertures
Applied sciences
Bandwidth
Circular polarization
Circularity
Couplings
Exact sciences and technology
Gain
Microstrip
Microstrip antennas
Microstrip lines
Radiocommunications
slot
Slot antennas
Telecommunications
Telecommunications and information theory
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Beschreibung
Zusammenfassung:An aperture-coupled ring-antenna is presented in this communication. The antenna is fed by a microstrip line through a unique aperture configuration. The aperture contains a square slot ring with four short branch slots protruding toward the center of the ring. It is studied that axial-ratio and return-loss bandwidths of 8.7% centered at 2.53 GHz can be achieved. Within 2.42 GHz-2.64 GHz, the gains are all greater than 7 dBic.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2011.2173138