A Novel Compact Dual-Linear Polarized UWB Antenna for VHF/UHF Applications

A Novel Compact Dual-Linear Polarized UWB Antenna for VHF/UHF Applications

A new compact dual-linearly polarized ultrawideband (UWB) antenna for continuous operation from 100 to 2000 MHz band with a minimum realized gain of -15 dBi is presented. The bore-sight realized gain monotonically increases from -15 dBi at 90 MHz to 0 dBi at 600 MHz, and remains approximately +4 dBi...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2009, Vol.8, p.145-148
Hauptverfasser: Osaretin, I.A., Torres, A., Chi-Chih Chen
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Application software
Arm
Dual-polarization
Feeds
Ferrite
Ferrites
Frequency
Gain
Ground plane
Horns
Loaded antennas
Low frequencies
Polarization
small antennas
UHF
UHF antennas
Ultra wideband antennas
Ultra wideband technology
Ultrawideband
ultrawideband (UWB) antenna
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Beschreibung
Zusammenfassung:A new compact dual-linearly polarized ultrawideband (UWB) antenna for continuous operation from 100 to 2000 MHz band with a minimum realized gain of -15 dBi is presented. The bore-sight realized gain monotonically increases from -15 dBi at 90 MHz to 0 dBi at 600 MHz, and remains approximately +4 dBi above 1000 MHz. The flared horn section closer to the feed is responsible for radiation above 1000 MHz. The compactness of this antenna at low frequency is achieved via ferrite absorber treatment on the ground plane and series inductive loading at the end of the antenna arms. The overall antenna size is a diameter of 15 in and height of 6 in. Linearly polarized fields are radiated from two orthogonal antennas. This antenna is suitable for software-defined radio application.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2009.2012881