A flat four-beam compact phased array antenna

This paper presents a flat four-beam compact phased array antenna. The low-cost and compact phased array antenna is designed using a circular array of four circular microstrip antennas made of low-cost material and four 1-bit phase shifters. The main beam of the antenna can be switched in four direc...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2002-05, Vol.12 (5), p.184-186
Hauptverfasser:	Krairiksh, M., Ngamjanyaporn, P., Kessuwan, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive arrays Antenna arrays Antennas Applied sciences Arrays Beams (radiation) Directional antennas Directive antennas Exact sciences and technology Gain Microstrip antenna arrays Microstrip antennas Microwaves Noise levels Phase shifters Phased arrays Prototypes Radiocommunications Switches Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	This paper presents a flat four-beam compact phased array antenna. The low-cost and compact phased array antenna is designed using a circular array of four circular microstrip antennas made of low-cost material and four 1-bit phase shifters. The main beam of the antenna can be switched in four directions with the gain of about 4 dBi in each main-beam direction. More than 90/spl deg/ half-power beamwidth and over 10 dB F/B ratio are obtained. In addition, the diversity performance is considered and the diversity performance of this antenna can be provided with the envelope correlation about 0.6.
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588
DOI:	10.1109/7260.1000197