DocumentCode
1853953
Title
Effect of impedance loading at higher harmonics on passive intermodulation in antennas
Author
Golikov, V. ; Hienonen, S. ; Vainikainen, P.
Author_Institution
Radio Lab., Helsinki Univ. of Technol., Espoo, Finland
Volume
4
fYear
2003
fDate
22-27 June 2003
Firstpage
378
Abstract
The goal of this work was to find out how the reflected PIM products are affected by different loading conditions at the 2nd and 3rd harmonics of excitation. The assembly, consisting of a GSM900 antenna and a microstrip feeding line with different impedance loads provided at 2nd and 3rd harmonics, was prototyped and measured with respect to PIM performance. As the PIM source, an SMA connector was used at the input of the antenna. Such a connector is very typical in patch antenna feeds and appears to be problematic in PIM sense.
Keywords
harmonic distortion; intermodulation distortion; microstrip antennas; mobile antennas; mobile handsets; surface impedance; GSM900 base station antennas; higher harmonics; impedance loading; microstrip feeding line; mobile communication antennas; passive intermodulation; reflected products; Antenna measurements; Assembly; Connectors; Dielectric loss measurement; Diodes; Impedance; Loaded antennas; Microstrip antennas; Prototypes; Testing;
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.2003.1220200
Filename
1220200
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