Title :
A novel feed system for soil moisture spaceborne radar: dual-frequency dual-polarized stacked patch microstrip array
Author :
Kona, Keerti S. ; Manteghi, Majid ; Rahmat-Samii, Yahya
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
This paper describes the development and performance of a dual-frequency and dual-linear polarization microstrip antenna to be used in a synthetic aperture radar (SAR) for remote-sensing applications. The synthetic aperture radar (SAR) UHF/VHF design is used to deliver data for estimation of soil moisture. Two operating frequencies of 137.5 MHz and 435 MHz have been chosen to separate the effects of vegetation and soil and polarimetry at each frequency is needed to sufficiently characterize vegetation and soil. The planned parabolic reflector antenna has two different antenna widths of 30 m by 2.8 m at UHF and 30 m by 11 m at VHF by subilluminating a 30 m parabolic reflector antenna with a dual-frequency stacked microstrip array feed.
Keywords :
UHF antennas; VHF antennas; microstrip antenna arrays; moisture measurement; multifrequency antennas; polarisation; radar antennas; radar polarimetry; reflector antenna feeds; remote sensing by radar; soil; synthetic aperture radar; 137.5 MHz; 435 MHz; SAR; UHF/VHF design; dual-frequency microstrip antenna; dual-frequency stacked microstrip array feed; dual-linear polarization microstrip antenna; parabolic reflector antenna; polarimetry; remote sensing; soil moisture estimation; synthetic aperture radar; Antenna feeds; Frequency; Microstrip antenna arrays; Microstrip antennas; Reflector antennas; Soil moisture; Spaceborne radar; Synthetic aperture radar; UHF antennas; Vegetation;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330319
