Design of a broadband microstrip crossover for ultra-wideband applications

This article presents the investigations of ultra-wideband microstrip crossover. In the design procedure, the equivalent circuit of microstrip crossover is used. To improve parameters of the investigated structure, two configurations of compensating circuits are designed and examined. The numerical results are experimentally verified. A good agreement between simulation results and measured ones is obtained. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1100–1104, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25146

[1]  L. Manholm,et al.  Low-loss compact Butler matrix for a microstrip antenna , 2002 .

[2]  T. Biedermann A Dual-Polarized Patch Antenna with High Decoupling , 2007, 2007 2nd International ITG Conference on Antennas.

[3]  T.A. Denidni,et al.  Novel Ultra-Wideband CB-CBW Butler matrix , 2008, 2008 IEEE Antennas and Propagation Society International Symposium.

[4]  George E. Ponchak,et al.  Finite ground coplanar waveguide (FGC) low loss, low coupling 90-degree crossover junctions , 2002 .

[5]  Yuan Chen,et al.  A Symmetrical Four-Port Microstrip Coupler for Crossover Application , 2007, IEEE Transactions on Microwave Theory and Techniques.

[6]  S. Gruszczynski,et al.  Improved Multilayer Transmission-Line Crossover for Butler Matrix Applications , 2006, 2006 International Conference on Microwaves, Radar & Wireless Communications.

[7]  S. Gruszczynski,et al.  Broadband 4 $\times$ 4 Butler Matrices as a Connection of Symmetrical Multisection Coupled-Line 3-dB Directional Couplers and Phase Correction Networks , 2009, IEEE Transactions on Microwave Theory and Techniques.

[8]  Edward J. Wollack,et al.  Via-less microwave crossover using microstrip-CPW transitions in slotline propagation mode , 2009, 2009 IEEE MTT-S International Microwave Symposium Digest.