Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

Dual-Polarized Sinuous Antennas on Extended Hemispherical Silicon Lenses

By: O'Brient, R.; Edwards, J.M.; Rebeiz, G.M.; Lee, A.T.;

2012 / IEEE


This item was taken from the IEEE Periodical ' Dual-Polarized Sinuous Antennas on Extended Hemispherical Silicon Lenses ' This paper examines the performance of dual-linear sinuous antennas on silicon extended hemispherical silicon dielectric lenses. A theoretical impedance of 106 � 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.