Flat energy density antenna

Author

Arai, H. ; Iwashita, H. ; Goto, N.

Author_Institution

Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Kanagawa, Japan

fYear

1991

fDate

24-28 June 1991

Firstpage

940

Abstract

The authors present a feed circuit for the flat energy density antenna for mobile telephone, and measurement results on its input characteristics and radiation pattern at 1.5 GHz. The correlation coefficient between ring patch and notch antenna of less than 0.1 is small enough for diversity branches. To verify the diversity effect of this antenna, the authors measured urban propagation characteristics at 900 MHz and compared them with results for a space diversity antenna. It is confirmed that the flat energy density antenna is appropriate for the diversity antenna of a mobile telephone.<>

Keywords

antenna feeders; antenna radiation patterns; diversity reception; microstrip antennas; microwave antenna arrays; mobile antennas; 1.5 GHz; 900 MHz; UHF; correlation coefficient; diversity branches; feed circuit; flat energy density antenna; input characteristics; mobile telephone; notch antenna; notch array; radiation pattern; ring patch; urban propagation characteristics; Antenna feeds; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Circuits; Density measurement; Energy measurement; Extraterrestrial measurements; Mobile antennas; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1991. AP-S. Digest

Conference_Location

London, Ontario, Canada

Print_ISBN

0-7803-0144-7

Type

conf

DOI

10.1109/APS.1991.174999

Filename

174999