Fixed frequency broadside–endfire beam steerable antennas

A novel reconfigurable broadside–endfire microstrip antenna is proposed. The beam steering is achieved by reconfiguring the ground plane. The ground plane can be reconfigured either into a high-impedance surface for broadside radiation or into a surface waveguide for endfire radiation. A DC bias lin...

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Veröffentlicht in:	Electronics letters 2016-07, Vol.52 (15), p.1282-1284
Hauptverfasser:	Majumdar, B, Esselle, K.P
Format:	Artikel
Sprache:	eng
Schlagworte:	antenna radiation patterns Antennas Antennas and propagation bandwidth 110 MHz beam steering Beams (radiation) broadside radiation Electronics fixed frequency broadside–endfire beam steerable antennas frequency 2.45 GHz Ground plane high‐impedance surface microstrip antenna microstrip antenna arrays Microstrip antennas PIN diodes Power supplies p‐i‐n diodes surface waveguide Switches UHF antennas voltage 5 V voltage 9 V
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Beschreibung
Zusammenfassung:	A novel reconfigurable broadside–endfire microstrip antenna is proposed. The beam steering is achieved by reconfiguring the ground plane. The ground plane can be reconfigured either into a high-impedance surface for broadside radiation or into a surface waveguide for endfire radiation. A DC bias line, not connected to the folded dipole feed in any way, is used to switch the PIN diodes. PIN diodes are soldered on the back of the antenna and have no possibility of interfering with the feed. The proposed antenna is designed to work at the ISM 2.45 GHz band with a combined 2:1 VSWR bandwidth of 110 MHz and a combined radiation coverage of 133° on the H-plane. A 5 V power supply or a 9 V battery can be used to operate the active antenna.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2016.1290