DocumentCode :
1736545
Title :
Semi-circular microstrip array on a planar reflector with extended beam-scanning range
Author :
Freese, J. ; Tudosie, G. ; Schussler, M. ; Jakoby, R.
Author_Institution :
Inst.f.Hochfrequenztechnik, Technische Univ. Darmstadt, Germany
Volume :
1
fYear :
2003
Firstpage :
284
Abstract :
For wide-angle scanning applications, we investigate a semi-circular microstrip array on a planar metallic reflector. The array elements lie on the semi-circular surface of a cylinder bisected axially by the plane of the reflector. To assess its beam scanning properties, the achievable directivity is determined for different main-lobe directions. For this particular array configuration, the main lobe can be scanned in an angular range of /spl plusmn/82/spl deg/ with a slightly reduced directivity compared to a corresponding planar linear array, indicating an angular scan range of /spl plusmn/50/spl deg/. As a proof of this concept, two array antennas with fixed main-beam directions are realized at an operating frequency of 10 GHz. The experimental results are compared with our simple analytical model using Matlab and simulations using the commercial tool Clementine.
Keywords :
antenna radiation patterns; antenna theory; microstrip antenna arrays; scanning antennas; 10 GHz; beam-scanning antenna; directivity; main-lobe directions; planar metallic reflector; planar reflector; radiation patterns; semi-circular microstrip array; Analytical models; Antenna arrays; Directive antennas; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Microstrip components; Radar antennas; Reflector antennas; Sensor arrays;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
Type :
conf
DOI :
10.1109/APS.2003.1217453
Filename :
1217453
Link To Document :
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