Title :
Design and development of ultra wide band transmitter leakage and reflected power canceller
Author :
Rao, C.V.N. ; Sinha, Piyush ; Chavda, Rajesh Kumar ; Kumar, Punam P.
Author_Institution :
Space Applic. Center, India Space Res. Organ., Ahmedabad, India
Abstract :
This paper describes the design and development of an ultra wide band (UWB) transmitter leakage and reflected power canceller (RPC), which enables a linear Frequency Modulated (FM)-CW monostatic radar to achieve high transmit and receive isolation of 35dB henceforth, increasing the sensitivity of receiver. In this proposed RPC Tx-Rx isolation is insensitive to antenna return loss variation from 10dB to 20dB. The proposed structure is realized on multilayer FR4, using multi-section couplers (for achieving 100% bandwidth) in tandem configuration to realize tightly coupled 3dB hybrids with less stringent requirement on fabrication tolerance.
Keywords :
CW radar; FM radar; ultra wideband radar; RPC Tx-Rx isolation; UWB; antenna return loss variation; fabrication tolerance; linear FM CW monostatic radar; linear frequency modulated continuous wave monostatic radar; multilayer FR4; multisection couplers; reflected power canceller; ultra wide band transmitter leakage; Antenna measurements; Couplers; Loss measurement; Propagation losses; Radar; Radar antennas; Reflector antennas; Multi-section Coupler; Reflected Power Canceller; Sensitivity; Tandem Coupler; Tx-Rx isolation; Ultra Wide Bandwidth;
Conference_Titel :
Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN), 2014 2nd International Conference on
Print_ISBN :
978-1-4799-6985-2
DOI :
10.1109/ET2ECN.2014.7044935
