Microstrip Rat-Race Couplers

With the rapid development of modern wireless communication systems, the desirable miniaturization, multifunctionality strong harmonic suppression, and enhanced bandwidth of the rat-race coupler has generated much interest and continues to be a focus of research. Whether the current rat-race coupler is sufficient to adapt to the future development of microwave systems has become a heated topic.

[1]  Bumman Kim,et al.  Small Wideband Coupled-Line Ring Hybrids With No Restriction on Coupling Power , 2009, IEEE Transactions on Microwave Theory and Techniques.

[2]  Jen-Tsai Kuo,et al.  New miniaturized dual-band rat-race coupler with microwave C-sections , 2009, 2009 IEEE MTT-S International Microwave Symposium Digest.

[3]  S. Opozda,et al.  A compact seven‐section rat‐race hybrid coupler incorporating PBG cells , 2009 .

[4]  Giuseppina Monti,et al.  Compact broadband monolithic 3‐dB coupler by using artificial transmission lines , 2008 .

[5]  Chao-Hsiung Tseng,et al.  Compact Rat-Race Coupler Using Shunt-Stub-Based Artificial Transmission Lines , 2008, IEEE Microwave and Wireless Components Letters.

[6]  J. Reed,et al.  A Method of Analysis of Symmetrical Four-Port Networks , 1956 .

[7]  Gong Shu-xi.  New Compact Enhanced-Bandwidth Hybrid Ring , 2006 .

[8]  K.-K.M. Cheng,et al.  A novel rat race coupler design for dual-band applications , 2005, IEEE Microwave and Wireless Components Letters.

[9]  S. Sanyal,et al.  Reduced-Length Rat-Race Couplers , 2007, IEEE Transactions on Microwave Theory and Techniques.

[10]  Kai Chang,et al.  New uniplanar coplanar waveguide hybrid-ring couplers and magic-T's , 1994 .

[11]  H. Ghali,et al.  Miniaturized fractal rat-race, branch-line, and coupled-line hybrids , 2004, IEEE Transactions on Microwave Theory and Techniques.

[12]  Yi-Chyun Chiou,et al.  Miniaturized Rat Race Coupler With Suppression of Spurious Passband , 2007, IEEE Microwave and Wireless Components Letters.

[13]  Vamsi Krishna Velidi,et al.  Microstrip rat‐race couplers with predetermined miniaturization and harmonic suppression , 2010 .

[14]  Tatsuo Itoh,et al.  Electromagnetic metamaterials : transmission line theory and microwave applications : the engineering approach , 2005 .

[15]  Mrinal Kanti Mandal,et al.  Compact dual‐band rat‐race couplers , 2008 .

[16]  A. Sharaiha,et al.  A Compact Wide-Band Rat-Race Hybrid Using Microstrip Lines , 2009, IEEE Microwave and Wireless Components Letters.

[17]  Quan Xue,et al.  A Broadband Compact Microstrip Rat-Race Hybrid Using a Novel CPW Inverter , 2007, IEEE Transactions on Microwave Theory and Techniques.

[18]  Jordi Bonache,et al.  Applications of resonant‐type metamaterial transmission lines to the design of enhanced bandwidth components with compact dimensions , 2008 .

[19]  Ming-Lin Chuang.  Miniaturized ring coupler of arbitrary reduced size , 2005, IEEE Microwave and Wireless Components Letters.

[20]  Kuo-Sheng Chin,et al.  Compact Dual-Band Branch-Line and Rat-Race Couplers With Stepped-Impedance-Stub Lines , 2010, IEEE Transactions on Microwave Theory and Techniques.

[21]  Wang Guang-ming,et al.  Compact design of branch-line coupler based on CRLH TL combined with fractal shaped geometry , 2010, 2010 International Conference on Microwave and Millimeter Wave Technology.

[22]  Hadia El-Hennawy,et al.  Compact rat-race hybrid coupler using meander space-filling curves , 2006 .

[23]  Wei Shao,et al.  Compact rat‐race ring coupler with capacitor loading , 2010 .

[24]  H.-X. Xu,et al.  Fractal-shaped UWB bandpass filter based on composite right/left handed transmission line , 2010 .

[25]  王光明.  Hilbert Fractal Curves Form Compact Diplexer , 2010 .

[26]  Mrinal Kanti Mandal,et al.  Uniplanar harmonic suppressed compact rat‐race couplers , 2008 .

[27]  Kyoung Choi,et al.  A Harmonic and Size Reduced Ring Hybrid Using Coupled Lines , 2007, IEEE Microwave and Wireless Components Letters.

[28]  Yong-Xin Guo,et al.  Compact slow-wave microstrip rat-race ring coupler , 2007 .

[29]  Patnam Hanumantha Rao,et al.  Miniaturized broadband microstrip fractal rat‐race coupler with shunt stubs , 2010 .

[30]  Feng Lin,et al.  A novel tri‐band rat race coupler with T‐shape step impedance transformers , 2010 .

[31]  K. Cheng,et al.  Dual-band rat-race coupler design using tri-section branch-line , 2007 .

[32]  Tatsuo Itoh,et al.  Application of composite right/left-handed half-mode substrate integrated waveguide to the design of a dual-band rat-race coupler , 2010, 2010 IEEE MTT-S International Microwave Symposium.