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Polarization reconfigurable microstrip patch antenna
Author(s) -
Han TuanYung,
Jiashih Shih Chuang,
Row JeenSheen
Publication year - 2013
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.27374
Subject(s) - microstrip antenna , patch antenna , microstrip , reconfigurable antenna , hybrid coupler , impedance matching , electrical engineering , microwave , capacitance , optics , capacitor , optoelectronics , power dividers and directional couplers , engineering , electronic engineering , electrical impedance , antenna efficiency , antenna (radio) , physics , telecommunications , voltage , electrode , quantum mechanics
Abstract The performances of a quasilumped coupler with a pair of capacitors are first described. By varying the capacitance value of the capacitors, the coupler can operate at three different modes, including uncoupled‐line mode, quadrature hybrid mode, and T‐junction power divider mode. Based on the coupler design, a microstrip antenna with switchable polarization is developed and implemented. Experimental results demonstrate that the reconfigurable antenna can provide two linear polarizations and one circular polarization at one frequency. In addition, the antenna operating at each polarization state has good impedance matching and broadside radiation with low cross polarization. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:471–474, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27374