Title :
Low-loss and compact sector antenna that adopts omni-directional characteristics
Author :
Seki, T. ; Yamamoto, H. ; Hori, Toshikazu
Author_Institution :
Nippon Telegraph & Telephone Corp., Japan
Abstract :
We propose a compact sector antenna that adopts omni-directional characteristics by using a vertical dipole antenna with selectable parasitic elements without a ground plane. Additionally, we present an antenna that has both uni-directional and omni-directional antenna characteristics realized through simple switching of an additional element. This paper describes the constructed 5.0 GHz prototype antenna and presents experimental results.
Keywords :
antenna radiation patterns; dipole antennas; microwave antennas; 5 GHz; SHF; compact sector antenna; experimental results; high-speed wireless communication systems; low-loss sector antenna; microwave frequency band; omni-directional antenna characteristics; prototype antenna; selectable parasitic elements; uni-directional antenna characteristics; vertical dipole antenna; wireless ATM; wireless LAN; Current distribution; Dipole antennas; Directive antennas; Microwave frequencies; Reflector antennas; Switches; Switching circuits; Telegraphy; Telephony; Wireless LAN;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874444
