Premium
24‐GHz transceiver patch array front‐end with a balanced Tx leakage canceller
Author(s) -
Lee HanLim,
Son WangIk,
Yu JongWon
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25815
Subject(s) - transceiver , electrical engineering , antenna (radio) , leakage (economics) , microwave , electrical impedance , engineering , patch antenna , electronic engineering , physics , telecommunications , cmos , economics , macroeconomics
Abstract A new 24‐GHz transceiver patch array with a balanced Tx leakage canceller insensitive to antenna impedance variation and mutual coupling among ports is proposed. Consisting of two quadrature hybrids, two ring hybrids, and 4‐port feed antenna, high transmit/receive (Tx/Rx) isolation is maintained regardless of antenna impedance variation and antenna mutual coupling. The proposed 4‐port feed antenna is configured by dual fed 2x1 patch array having 6.12 and 5.06 dBi of measured Tx and Rx peak gain, respectively. In addition, the proposed architecture undergoes no power loss because of load termination (usually 50 Ω) in both transmit and receive paths. The proposed architecture obtains the measured Tx/Rx isolation of more than −40 dB stable at 24 GHz regardless of the antenna impedance variation. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:559–562, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25815