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  4. An Electronically Scannable Reflector Antenna Using a Planar Active Array Feed at Ka-Band
 
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An Electronically Scannable Reflector Antenna Using a Planar Active Array Feed at Ka-Band

Publikationstyp
Journal Article
Date Issued
2017-05
Sprache
English
Author(s)
Rohrdantz, Benjamin  
Jaschke, Thomas  orcid-logo
Reuschel, Torsten  
Radzijewski, Stefan  
Sieganschin, Anton  orcid-logo
Jacob, Arne  
Institut
Hochfrequenztechnik E-3  
Theoretische Elektrotechnik E-18  
TORE-URI
http://hdl.handle.net/11420/3890
Journal
IEEE transactions on microwave theory and techniques / Symposium issue  
Volume
65
Issue
5
Start Page
1650
End Page
1661
Article Number
7876751
Citation
IEEE Transactions on Microwave Theory and Techniques 5 (65): 7876751 (2017-05)
Publisher DOI
10.1109/TMTT.2017.2663402
Scopus ID
2-s2.0-85015669289
This contribution presents the system design procedure and performance of an array fed reflector antenna. Combining the inherent benefits of a reflector antenna - high gain, low-cost, and simplicity - with the agility provided by a scannable active array feed, enables a new range of applications, for instance in commercial mobile antenna terminals. The whole arrangement features a restricted field of view for either scanning or multibeam applications. To minimize system cost, a planar patch antenna array in printed circuit board technology is used for the feed and the reflector diameter is restricted to 60 cm. To obtain optimal performance, both the reflector and the feed are specifically designed for the desired application, i.e., mobile satellite communication at Ka-band. A comprehensive study of various rotationally symmetric reflectors is carried out to determine arrangements maximizing the field of view and still complying with the respective regulations. For the feed, a 30 GHz transmit array with 49 elements is developed, enabling 2-D scanning in a ±6° conical sector. It includes a wideband signal distribution network and frontend electronics.
Subjects
Array fed reflector
electronic scanning
focal plane array
Ka-band
multibeam
reflector antenna
satellite communication
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