Broadband design of substrate integrated waveguide to stripline interconnect

A broadband design of substrate integrated waveguide (SIW) to stripline interconnects is presented for the first time. The transition shows a wideband performance and, contrary to microstrip and coplanar waveguide circuitry, interconnects two planar transmission-line media that are both capable of medium-level power handling capabilities. Over a bandwidth of 18 GHz to 28 GHz (43.4 percent), the single interconnect shows a worst-case return loss of 24 dB and maximum insertion losses of 0.44 dB. For a back-to-back connection, the return loss reduces to 19 dB and insertion loss increases to 0.87 dB. All dimensional parameters are specified, and the design is validated by two commercially available field-solver packages. Moreover, field plots are presented that highlight the step-by-step mode conversion from SIW to stripline.

[1]  J. Bornemann,et al.  Analysis and design of profiled multiaperture stripline-to-microstrip couplers , 2003 .

[2]  Wolfgang Menzel,et al.  An ultra-wideband vertical transition from microstrip to stripline in PCB technology , 2010, 2010 IEEE International Conference on Ultra-Wideband.

[3]  C. Lee,et al.  Novel transition between different configurations of planar transmission lines , 2002, IEEE Microwave and Wireless Components Letters.

[4]  Ke Wu,et al.  Low-loss ultra-wideband transition between conductor-backed coplanar waveguide and substrate integrated waveguide , 2009, 2009 IEEE MTT-S International Microwave Symposium Digest.

[6]  D. Mirshekar-Syahkal,et al.  Novel wide-band transition between Finite Ground Coplanar Waveguide (FGCPW) and balanced stripline , 2009, 2009 European Microwave Integrated Circuits Conference (EuMIC).

[7]  D. Deslandes.  Design equations for tapered microstrip-to-Substrate Integrated Waveguide transitions , 2010, 2010 IEEE MTT-S International Microwave Symposium.

[8]  A. Elsherbini,et al.  Experimental development of a circularly polarized antipodal tapered slot antenna using SIW feed printed on thick substrate , 2007, 2007 IEEE Antennas and Propagation Society International Symposium.

[9]  Ke Wu,et al.  Inverted interconnect between substrate integrated waveguide and coplanar waveguide , 2013, 2013 IEEE MTT-S International Microwave Symposium Digest (MTT).

[10]  K. Wu,et al.  Integration and interconnect techniques of planar and non-planar structures for microwave and millimeter-wave circuits - current status and future trend , 2001, APMC 2001. 2001 Asia-Pacific Microwave Conference (Cat. No.01TH8577).

[11]  Ke Wu,et al.  Substrate-integrated waveguide transitions to planar transmission-line technologies , 2012, 2012 IEEE/MTT-S International Microwave Symposium Digest.

[12]  Grzegorz Jaworski,et al.  Broadband stripline to microstrip transition with constant impedance field matching section for applications in multilayer planar technologies , 2010, 18-th INTERNATIONAL CONFERENCE ON MICROWAVES, RADAR AND WIRELESS COMMUNICATIONS.

[13]  J. Bornemann,et al.  Linear tapered slot antenna with substrate integrated waveguide feed , 2007, 2007 IEEE Antennas and Propagation Society International Symposium.

[14]  A. Mallahzadeh,et al.  Wideband H-Plane Horn Antenna Based on Ridge Substrate Integrated Waveguide (RSIW) , 2012, IEEE Antennas and Wireless Propagation Letters.

[15]  Ke Wu,et al.  Broadband coplanar-waveguide and microstrip low-noise amplifier hybrid integrations for k-band substrate integrated waveguide applications on low-permittivity substrate , 2014 .

[16]  S. Gedney,et al.  CPW-stripline transitions on silicon over the 0-20 GHz range , 2000, IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (C.

[17]  Wei Hong,et al.  Design and Implementation of a Broadband Substrate Integrated Waveguide Magic-T , 2012, IEEE Microwave and Wireless Components Letters.

[18]  Brian C. Wadell,et al.  Transmission Line Design Handbook , 1991 .