A Planar UWB Antenna With a Broadband Feeding Structure

A Planar UWB Antenna With a Broadband Feeding Structure

A planar antenna with a broadband feeding structure is presented and analyzed for ultrawideband applications. The proposed antenna consists of a suspended radiator fed by an n-shape microstrip feed. Study shows that this antenna achieves an impedance bandwidth from 3.1-5.1 GHz (48%) for a reflection...

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Veröffentlicht in:IEEE transactions on antennas and propagation 2009-07, Vol.57 (7), p.2172-2175
Hauptverfasser: Toh, Wee Kian, Chen, Zhi Ning, Qing, Xianming
Format: Artikel
Sprache:eng
Schlagworte:
Antenna feeds
Antennas
Applied sciences
Bandwidth
Boresights
Broadband
Broadband antennas
Exact sciences and technology
Feeding
Impedance
Microstrip antennas
microstrip patch antennas
Noise levels
Planar arrays
Radiocommunications
Reflection
Reflector antennas
Retarding
suspended plate antennas
Telecommunications
Telecommunications and information theory
Tolerances
Ultra wideband antennas
Ultra wideband technology
Ultrawideband
ultrawideband (UWB) antennas
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Beschreibung
Zusammenfassung:A planar antenna with a broadband feeding structure is presented and analyzed for ultrawideband applications. The proposed antenna consists of a suspended radiator fed by an n-shape microstrip feed. Study shows that this antenna achieves an impedance bandwidth from 3.1-5.1 GHz (48%) for a reflection of coefficient of iotaS 11 iota < -10 dB, and an average gain of 7.7 dBi. Stable boresight radiation patterns are achieved across the entire operating frequency band, by suppressing the high order mode resonances. This design exhibits good mechanical tolerance and manufacturability.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2009.2021968