Design of a wideband eight-way single ridge substrate integrated waveguide power divider

Recently, a low-loss X-band eight-way compact substrate-integrated-waveguide (SIW) power combiner was developed with about 40% bandwidth. To further widen the operating bandwidth, ridges can be added to form a ridge SIW (RSIW). RSIW has many advantages, such as a low profile, light weight, low cost and planar structure and wide bandwidth. In this study, a 1 to 8 splitter for an array antenna feed based on RSIW technology has been designed and fabricated that encompasses an extended bandwidth beyond that of the conventional guides. The divider is comprised of a GCPW to RSIW transition, RSIW T-junction and 90° bend and has demonstrated over a 65% bandwidth with better than 10 dB return loss from 5 to 10 GHz. In particular, it demonstrated excellent amplitude and phase uniformity with less than ±0.3 dB and ±5° imbalance, respectively, within 5.5 to 9.6 GHz.

[1]  Ke Wu,et al.  The substrate integrated circuits - a new concept for high-frequency electronics and optoelectronics , 2003, 6th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service, 2003. TELSIKS 2003..

[2]  Wei Hong,et al.  Multiway broadband substrate integrated waveguide (SIW) power divider , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[3]  Ke Wu,et al.  Analysis and design of current probe transition from grounded coplanar to substrate integrated rectangular waveguides , 2005, IEEE Transactions on Microwave Theory and Techniques.

[4]  K. Wu,et al.  Integrated microstrip and rectangular waveguide in planar form , 2001, IEEE Microwave and Wireless Components Letters.

[5]  Wolfgang Menzel,et al.  A wideband transition from substrate integrated waveguide to differential microstrip lines in multilayer substrates , 2010, The 40th European Microwave Conference.

[6]  Ke Wu,et al.  Substrate Integrated Waveguide-to-Microstrip Transition in Multilayer Substrate , 2007, IEEE Transactions on Microwave Theory and Techniques.

[7]  Ke Wu,et al.  Broadband and compact ridge substrate-integrated waveguides , 2010 .

[8]  Ke Wu,et al.  Development of substrate integrated waveguide power dividers , 2003, CCECE 2003 - Canadian Conference on Electrical and Computer Engineering. Toward a Caring and Humane Technology (Cat. No.03CH37436).

[9]  Aly E. Fathy,et al.  Development of an ultra wide band GCPW to SIW transition , 2012, 2012 IEEE Radio and Wireless Symposium.

[10]  A. Elsherbini,et al.  A highly efficient Vivaldi antenna array design on thick substrate and fed by SIW structure with integrated GCPW feed , 2007, 2007 IEEE Antennas and Propagation Society International Symposium.

[11]  Yong Fan,et al.  Eight-Way Substrate Integrated Waveguide Power Divider With Low Insertion Loss , 2008, IEEE Transactions on Microwave Theory and Techniques.

[12]  John W. Gipprich,et al.  Low-temperature cofired ceramic (LTCC) ridge waveguide bandpass chip filters , 1999, IMS 1999.

[13]  W. Menzel,et al.  On the Transition from Ridged Waveguide to Microstrip , 1989, 1989 19th European Microwave Conference.

[14]  Yan Ding.  Miniaturization Techniques of Substrate Integrated Waveguide Based on Multilayered Printed Circuit Board Platform , 2011 .

[15]  Joseph Ainsworth.  A numerical model of the propagation characteristics of multi-layer ridged substrate integrated waveguide , 2012 .

[16]  Yong Fan,et al.  Broadband travelling-wave power divider based on substrate integrated rectangular waveguide , 2009 .

[17]  Peter Russer,et al.  Propagation and band broadening effect of planar integrated ridged waveguide in multilayer dielectric substrates , 2008, 2008 IEEE MTT-S International Microwave Symposium Digest.

[18]  Aly E. Fathy,et al.  DESIGN OF A WIDE BAND EIGHT-WAY COMPACT SIW POWER COMBINER FED BY A LOW LOSS GCPW- TO-SIW TRANSITION , 2012 .

[19]  A. Fathy,et al.  Development of an ultra wideband Vivaldi antenna array , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.