A circularly polarized short backfire antenna excited by an unbalance-fed cross aperture

An unbalance-fed cross aperture is developed to excite a short backfire antenna (SBA) for circular polarization. The cross aperture consists of two orthogonal H-shaped slots with a pair of capacitive stubs and is fed by a single probe that forms an unbalanced feed with a shorting pin. It is demonstr...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2006-03, Vol.54 (3), p.852-859
Main Authors: RongLin Li, Thompson, D.C., Papapolymerou, J., Laskar, J., Tentzeris, M.M.
Format: Article
Language:English
Subjects:
Antennas
Aperture antennas
Apertures
Applied sciences
Backfire antennas
Bandwidth
Circularity
Circularly polarized antenna
Exact sciences and technology
Excitation
Feeds
Gain
Impedance matching
Microstrip
Noise levels
Polarization
Probes
Radiocommunications
Satellite antennas
short backfire antenna (SBA)
Slot antennas
slot-fed antenna
Telecommunications
Telecommunications and information theory
Voltage
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Summary:An unbalance-fed cross aperture is developed to excite a short backfire antenna (SBA) for circular polarization. The cross aperture consists of two orthogonal H-shaped slots with a pair of capacitive stubs and is fed by a single probe that forms an unbalanced feed with a shorting pin. It is demonstrated that the cross-aperture-excited SBA can achieve an axial ratio (les 3 dB) bandwidth of 4.2% with a voltage standing wave ratio (VSWR) bandwidth of 6.5% (VSWR
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2006.869910