Front end design of 8mm polarimetric microwave radiometer

Author

Qing Li ; Yong Liu ; Yu-Ming Wu ; Li-Ming Si ; Xin Lv

Author_Institution

Beijing Key Lab. of Millimeter Wave & Terahertz Technol., Beijing Inst. of Technol., Beijing, China

fYear

2014

fDate

26-29 July 2014

Firstpage

1248

Lastpage

1251

Abstract

A front end of 8mm polarimetric microwave radiometer is presented in this paper. Simulations and measurements have shown that it has a good performance. The actual measured results show that it has an impedance bandwidth of VSWR<;1.25 over 35GHz-39GHz, within which the two ports isolation is lower than -39dB, the gain of it is larger than 21.6dBi and the sidelobe level is less than -20dB. For the advantages mentioned above, it could be used in measuring the sea surface wind vector. As an important aspect, the methods to design ortho-mode transducer (OMT) and multimode horn (MMH) are discussed in this paper.

Keywords

microwave measurement; polarimeters; radiometers; MMH; OMT; front end design; multimode horn design; ortho-mode transducer design; polarimetric microwave radiometer; sea surface wind vector measurement; size 8 mm; Impedance matching; Microwave antennas; Microwave measurement; Microwave radiometry; Microwave theory and techniques; Sea measurements; Transducers; multimode horn (MMH); ortho-mode transducer (OMT); polarimetric microwave radiometer;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4799-4355-5

Type

conf

DOI

10.1109/APCAP.2014.6992744

Filename

6992744