Asymmetric Compact OMT for X-Band SAR Applications

被引：21

作者：

Abdelaal, Mohamed A. ^{[1
]}

Shams, Shoukry I. ^{[1
]}

Kishk, Ahmed A. ^{[1
]}

机构：

[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 2W1, Canada

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2018年 / 66卷 / 04期

关键词：

Asymmetric orthomode transducer (OMT); compact OMT; synthetic aperture radar (SAR); X-band OMT; X-band SAR applications; GUIDE ORTHOMODE TRANSDUCER; RADAR; GHZ;

D O I：

10.1109/TMTT.2018.2791960

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A compact asymmetric orthomode transducer (OMT) with high isolation between the vertical and horizontal Ports is developed for the X-band synthetic aperture radar application. The basic idea of the design is to deploy the combined E-and H-plane bends within the common arm. Moreover, an offset between each polarization axis is introduced to enhance the isolation and decrease the size to be around one-third of most of the existing asymmetric OMTs. The OMT achieves better than 22.5-dB matching level and 65-dB isolation level between the two modes. Good agreement is obtained between measurements and full-wave simulations.

引用

页码：1856 / 1863

页数：8

共 35 条

[1] Development of Double-Ridged Wavegide Orthomode Transducer for the 2 MM Band [J].

Asayama, Shin'ichiro ;

Kamikura, Mamoru .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2009, 30 (06) :573-579

[2] SIMPLE AND BROAD-BAND ORTHOMODE TRANSDUCER [J].

BOIFOT, AM ;

LIER, E ;

SCHAUGPETTERSEN, T .

IEE PROCEEDINGS-H MICROWAVES ANTENNAS AND PROPAGATION, 1990, 137 (06) :396-400

[3]

Choubey PN., 2015, P IEEE INT WIR S IWS, P1, DOI 10.1109/IEEE-IWS.2015.7164587

[4] A Compact High-Performance Orthomode Transducer for the Atacama Large Millimeter Array (ALMA) Band 1 (31-45 GHz) [J].

Dousset, David ;

Claude, Stephane ;

Wu, Ke .

IEEE ACCESS, 2013, 1 :480-487

[5]

Dunning A, 2002, P WORKSH APPL RAD SC, V1, P1

[6]

Dunning A., 2009, P 20 INT S SPAC TER, P1

[7] K-band orthomode transducer with waveguide ports and balanced coaxial probes [J].

Engargiola, G ;

Navarrini, A .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (05) :1792-1801

[8] A planar orthomode transducer [J].

Jackson, RW .

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2001, 11 (12) :483-485

[9]

James G. L., 1992, 1992 IEEE MTT-S International Microwave Symposium Digest (Cat. No.92CH3141-9), P1361, DOI 10.1109/MWSYM.1992.188258

[10] Fully polarimetric microwave radiometer for remote sensing [J].

Lahtinen, J ;

Pihlflyckt, J ;

Mononen, K ;

Tauriainen, SJ ;

Kemppinen, M ;

Hallikainen, MT .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2003, 41 (08) :1869-1878

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