Switched Antenna Circuit With Increased Information Bandwidth

Switched Antenna Circuit With Increased Information Bandwidth

An L -band microstrip patch antenna is directly modulated with fast-switching p-i-n diodes over a range of modulation frequencies well beyond the resonant bandwidth of the antenna. The experimental results, in both the time and frequency domains, show that by using this direct modulation technique,...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2010, Vol.9, p.1045-1048
Hauptverfasser: Keller, Steven D, Palmer, W Devereux, Joines, William T
Format: Artikel
Sprache:eng
Schlagworte:
Amplitude modulation
Antennas
Bandwidth
Circuits
Computational electromagnetics
Diodes
direct modulation
Frequency modulation
Modulation
Narrowband
p-i-n diode
patch antenna
Patch antennas
Receiving antennas
Reflection coefficient
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Beschreibung
Zusammenfassung:An L -band microstrip patch antenna is directly modulated with fast-switching p-i-n diodes over a range of modulation frequencies well beyond the resonant bandwidth of the antenna. The experimental results, in both the time and frequency domains, show that by using this direct modulation technique, a narrowband patch antenna with a -10 -dB reflection coefficient bandwidth of 28 MHz successfully transmits a directly modulated signal with a bandwidth greater than 300 MHz.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2010.2089775