Millimeter wave microstrip array design with CRLH-TL as feeding line
ABSTRACT Based on the advance phase shift characteristics of left-handed transmission line, a millimeter wave microstrip array with composite right/left-handed transmission line as feeding line has been presented here. By means of CRLH-TL, insertion phase shift of the patch in the series configuration has been removed and higher gain of the array can be achieved.
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ABSTRACT: We present an integrated composite right/left handed transmission line (CRLH-TL) phase shifter analogically controlled by means of a MEMS series capacitor. The device is based on coplanar waveguide (CPW) technology and operates at a central frequency of 18 GHz. An accurate and physical circuit model including parasitics inherent to this MEMS realization is presented. We describe the method used to design the presented structure, which consists in a mixed approach using the developed circuit model and full-wave simulations. The MEMS-controlled CRLH-TL has been fabricated and characterized, showing good agreement with predicted performances. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2496–2499, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22014Microwave and Optical Technology Letters 11/2006; 48(12):2496 - 2499. · 0.62 Impact Factor