Title :
Dual frequency low profile printed dipole Yagi-array for a cabin mounted vehicular antenna
Author :
Kagoshima, Kenichi ; Takahashi, Tatsumi ; Ebine, Yoshio
Author_Institution :
NTT Corp., Kanagawa, Japan
Abstract :
A dual-frequency low-profile printed dipole Yagi-array which can be attached at the back of a rear-view mirror within a vehicle interior is proposed. The relation between its configuration parameters and electrical performance is studied by numerical analysis. Although the dimensions of the antenna are very small, a frequency bandwidth, defined by a VSWR (voltage standing wave ratio) of less than 1.5 of 10% was achieved. Virtually identical radiation patterns with directivity of 4 dB/sub i/ were achieved in both frequency bands. By combining the output of two of the proposed antennas, diversity reception can be achieved.<>
Keywords :
antenna radiation patterns; dipole antennas; diversity reception; microstrip antennas; microwave antenna arrays; mobile antennas; numerical analysis; VSWR; cabin mounted vehicular antenna; configuration parameters; directivity; diversity reception; dual-frequency low-profile printed dipole Yagi-array; electrical performance; frequency bandwidth; mobile telephone systems; numerical analysis; radiation patterns; voltage standing wave ratio; Bandwidth; Dipole antennas; Frequency; Mirrors; Mobile antennas; Numerical analysis; Radio communication; Telegraphy; Telephony; Vehicles;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.175004
