Design of Electronically Steerable Passive Array Radiator (ESPAR) antennas

Koichi Gyoda, Takashi Ohira

研究成果: Conference contribution

128 被引用数 (Scopus)


Electronically Steerable Passive Array Radiator (ESPAR) antennas are proposed for low-cost analog adaptive beamforming. The configuration and design of these antennas and some simulation results, especially on their beam/null steering capability, are presented. From the results of a numerical analysis, it was found that 5-element ESPAR antennas can offer a beam gain of 9dBi ± 1dB and a null deeper than -50dBi in an arbitrary direction. In this case, the beam gain and null were obtained separately. It was also found that 7-element ESPAR antennas can achieve continuous steering in almost all directions, with a simultaneous 8dBi beam gain and -30dBi null, excluding the region where the direction of the beam and the direction of the null are within about 45-degrees however 5-element ESPAR antennas are unable to achieve steering in a number of directions, even with a simultaneous 5dBi beam gain and -15dBi null.

ホスト出版物のタイトルIEEE Antennas and Propagation Society International Symposium
ホスト出版物のサブタイトルTransmitting Waves of Progress to the Next Millennium, Held in Conjunction with: USNC/URSI National Radio Science Meeting, AP-S/URSI 2000
出版ステータスPublished - 2000 12月 1


名前IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)

ASJC Scopus subject areas

  • 電子工学および電気工学


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