Dual-Polarized Sinuous Antennas on Extended Hemispherical Silicon Lenses
Abstract
This paper examines the performance of dual-linear sinuous antennas on silicon extended hemispherical silicon dielectric lenses. A theoretical impedance of 106 Ω is identified based on the analysis of an ideal self-complementary structure, and this result compares well with simulations and measurements. The radiation properties of a linearly polarized sinuous antenna are simulated using Method of Moments software coupled to a GO/PO code, and also agree well with measurements. The results indicate that the sinuous antenna is an excellent wideband planar feed for a silicon lens, with cross-polarization levels below -17 dB, and polarization variations of ±5° over two octaves in frequency. The application areas are millimeter-wave, wideband, dual-polarized radio-astronomy receivers.
Additional Information
© 2012 IEEE. Manuscript received July 01, 2011; manuscript revised October 19, 2011; accepted December 19, 2011. Date of publication July 03, 2012; date of current version August 30, 2012. This work was supported by NASA grant NNG06GJ08G with Dr. Adrian Lee as the Principle Investigator. The authors would like to thank Prof. P. Richardson, Dr. K. Arnold, Dr. G. Engargiola, Dr. M. Myers, E. Quealy, Dr. A. Ghribi, and T. Suzuki for their contributions in technical discussions.Additional details
- Eprint ID
- 36954
- Resolver ID
- CaltechAUTHORS:20130215-110210545
- NNG06GJ08G
- NASA
- Created
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2013-02-15Created from EPrint's datestamp field
- Updated
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2023-03-16Created from EPrint's last_modified field
- Other Numbering System Name
- INSPEC Accession Number
- Other Numbering System Identifier
- 12961245