Title :
A patch-slot composite antenna for VH-polarization diversity base stations
Author :
Kuga, Nobuhiro ; Arai, Hiroyuki
Author_Institution :
Fac. of Eng., Tokyo Inst. of Polytech., Kanagawa, Japan
Abstract :
A VH-polarization diversity antenna with 45° beamwidth is proposed for a base station of CDMA mobile communications. A composite structure using modified patch and slot elements is described, and its fundamental characteristics are examined through experiment and FDTD simulation. Especially in the slot elements, wide bandwidth of over 20% is obtained by modifying the ground-plane shape. Advantageous characteristics such as large inter-polarization isolation and low cross polarization are also confirmed
Keywords :
UHF antennas; code division multiple access; diversity reception; electromagnetic wave polarisation; microstrip antenna arrays; mobile radio; slot antenna arrays; CDMA mobile communications; FDTD simulation; VH-polarization diversity antenna; VH-polarization diversity base stations; array antenna; composite structure; ground-plane shape modification; large inter-polarization isolation; low cross polarization; modified patch elements; modified slot elements; patch-slot composite antenna; subarrays; Antenna accessories; Antenna arrays; Base stations; Circuits; Dielectric substrates; Finite difference methods; Polarization; Probes; Railway engineering; Time domain analysis;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.926099
