Abstract
This letter presents a novel reflecto-directive system using a composite right/left-handed (CRLH) leaky-wave (LW) antenna and heterodyne mixing. The system receives a signal at a fixed frequency with a patch antenna and reflects it back toward any desired angle by tuning the LO frequency of a mixer. The performances of the system are demonstrated experimentally: 5 GHz incoming signals at -30/spl deg/, 0/spl deg/ and +30/spl deg/ are detected and transmitted, or reflected, to -20/spl deg/ at 3.5 GHz, +20/spl deg/ at 4.5 GHz and +50/spl deg/ at 5.5 GHz in agreement with the angle-frequency relationship of the CRLH antenna.
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