Compact UWB power divider packaged by using gap-waveguide technology

We present the design of a new ultra-wideband (UWB) 3 dB power divider, packaged by using Gap Waveguide Technology. The power divider, a simple compact T-junction designed by using Klopfenstein taper technique, has a bandwidth of about 2-14 GHz, with the purpose of being used in a feeding network for the Eleven feed. Simulated and measured results of transmission and reflection coefficients are presented. Comparison of the power dividers between without packaging, packaged by a metal box and packaged with the gap waveguide technology has shown the superiority of the new design.

[1]  S. Weinreb,et al.  The eleven antenna: a compact low-profile decade bandwidth dual polarized feed for reflector antennas , 2006, IEEE Transactions on Antennas and Propagation.

[2]  Jian Yang,et al.  A compact UWB passive balun solution for cryogenic 2-13 GHz Eleven feed for future wideband radio telescopes , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

[3]  E. Rajo-Iglesias,et al.  Local Metamaterial-Based Waveguides in Gaps Between Parallel Metal Plates , 2009, IEEE Antennas and Wireless Propagation Letters.

[4]  Gino Tuccari,et al.  “VLBI2010: Current and Future Requirements for Geodetic VLBI Systems” , 2006 .

[5]  Jian Yang,et al.  Monopulse Tracking Performance of Multi-Port Eleven Antenna for Use in Satellite Communications Terminals , 2007 .

[6]  Eva Rajo-Iglesias,et al.  Design and experimental verification of ridge gap waveguide in bed of nails for parallel-plate mode suppression , 2011 .

[7]  N Wadefalk,et al.  Cryogenic 2–13 GHz Eleven Feed for Reflector Antennas in Future Wideband Radio Telescopes , 2011, IEEE Transactions on Antennas and Propagation.

[8]  Per-Simon Kildal,et al.  Three metamaterial-based gap waveguides between parallel metal plates for mm/submm waves , 2009, 2009 3rd European Conference on Antennas and Propagation.

[9]  Eva Rajo-Iglesias,et al.  Improving microstrip filters with gap waveguide packaging , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

[10]  Ashraf Uz Zaman,et al.  Using Lid of pins for packaging of microstrip board for descrambling the ports of eleven antenna for radio telescope applications , 2010, 2010 IEEE Antennas and Propagation Society International Symposium.