KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Phased Array Behavior of the Coupling of the Millimeter Wave Second Harmonic Oscillator
Authors	최영규(Choi, Young-Kyu) ; 김기래(Kim, Gi-Rae)
DOI	https://doi.org/10.5370/KIEE.2015.64.3.438
Page	pp.438-444
ISSN	1975-8359
Keywords	Second harmonic oscillator ; Active antenna ; Phased array antenna ; Beam scanning ; Synchronization
Abstract	A new approach to the active phased arrays for the second harmonic generation is presented. Phase variation between the second harmonic oscillators by the mutual synchronization is analyzed theoretically. In this coupling, the active antenna consists of the FET oscillator which plays two roles in fundamental oscillation and frequency multiplying, and the patch antenna resonated at the second harmonic frequency. The radiated second harmonic wave was scanned by varying the free-running oscillation frequencies of the active antennas. In the experiment using the 2-elements array and the 4-elements array, the radiated beam of the second harmonic wave was scanned more widely compared with the case of the fundamental wave radiation.

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