Title :
Feeding condition of patch-monopole composite antenna with horizontal broad beam
Author :
Kuga, Nobuhiro ; Arai, Hiroyuki
Author_Institution :
Fac. of Eng., Tokyo Inst. of Polytech., Kanagawa, Japan
Abstract :
This paper presents a horizontal polarization broad-beam antenna using different radiation pattern elements. The antenna is composed of patch and monopole elements, and the excitation condition broadening the synthesized beam depends on groundplane width. These are examined numerically using the FDTD method, and the results are verified through experiments. Radiation characteristics of an array antenna are also examined approximately. It is shown that fourteen or more elements are needed to suppress side-lobes and to gain high XPD
Keywords :
antenna feeds; antenna radiation patterns; finite difference time-domain analysis; microstrip antenna arrays; microstrip antennas; monopole antenna arrays; monopole antennas; FDTD method; array antenna; excitation condition; feeding condition; groundplane width; high XPD; horizontal polarization broad-beam antenna; patch-monopole composite antenna; radiation pattern elements; side-lobe suppression; Antenna arrays; Antenna feeds; Antenna radiation patterns; Circuits; Dielectric substrates; Directive antennas; Finite difference methods; Mobile antennas; Patch antennas; Polarization;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985388
