Recombinant Waveguide Power Divider

In this paper, a substrate integrated waveguide power divider is proposed on the basis of a recombinant topology that provides in-phase power division with an odd or even number of branches. The aim is to generate different types of power distribution to control sidelobe level in the antenna array. In this study, several power-divider designs were designed to demonstrate and validate the design approach. Each design consists of a cascade of steps and nfurcations, which were initially designed based on sinusoidal basis functions. These designs were simulated using the High Frequency Structure Simulator (HFSS) and shown to closely match the performance estimated using the basis functions. A substrate with thickness of 0.508 mm and dielectric constant of 2.94 is used. A three-way power divider with a binominal output taper is optimized and fabricated, showing good results in the bandwidth of interest from 72 to 81 GHz. Measurement results for a 3 × 8 slot array antenna designed in conjunction with the proposed feeding network are presented and discussed. This design can be used to build up rectangular waveguide structures. The novel structure is expected to be useful in building sub-arrays of antenna in the development of millimeter-wave automotive radar systems.

[1]  Dietmar Kissinger,et al.  The impact of antenna characteristics on target detection in FMCW-radar system simulations for automotive applications , 2012, 2012 IEEE Radio and Wireless Symposium.

[2]  M. Dich,et al.  Low loss power splitter for antenna beam forming networks using probes in a waveguide , 1994, 1994 24th European Microwave Conference.

[3]  Ke Wu,et al.  Three-Dimensional Architecture of Substrate Integrated Waveguide Feeder for Fermi Tapered Slot Antenna Array Applications , 2012, IEEE Transactions on Antennas and Propagation.

[4]  Ke Wu,et al.  Universal Single-Layer Waveguide Power Divider for Slot Array Antenna Applications , 2007, 2007 IEEE/MTT-S International Microwave Symposium.

[5]  Nathan Marcuvitz.  Waveguide Handbook , 1951 .

[6]  Edward Hoare,et al.  System requirements for automotive radar antennas , 2000 .

[7]  Choon Sik Cho,et al.  Radial guided 4-way unequal power divider using substrate integrated waveguide with center-fed structure , 2009, 2009 Asia Pacific Microwave Conference.

[8]  E. E. Okon,et al.  Millimetre Wave Antennas for Vehicle Telematics , 2006 .

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

[10]  Ke Wu,et al.  Corrugated Substrate Integrated Waveguide (SIW) Antipodal Linearly Tapered Slot Antenna Array Fed by Quasi-Triangular Power Divider , 2012 .

[11]  M. Heuer,et al.  Requirements on automotive radar systems for enhanced pedestrian protection , 2012, 2012 13th International Radar Symposium.

[12]  Ke Wu,et al.  The substrate integrated waveguide (SIW) - concept, technology and applications , 2005 .

[13]  Ke Wu,et al.  A Compact, Wideband, Phase-Equalized Waveguide Divider/Combiner for Power Amplification , 2003, 2003 33rd European Microwave Conference, 2003.

[14]  Ke Wu,et al.  Simulation and experiment on SIW slot array antennas , 2004, IEEE Microwave and Wireless Components Letters.

[15]  P. Gardner,et al.  Mode matching design of three-way waveguide power dividers , 1997 .

[16]  Wei Hong,et al.  Substrate-Integrated Millimeter-Wave and Terahertz Antenna Technology , 2012, Proceedings of the IEEE.

[17]  T. Zwick,et al.  Millimeter-Wave Technology for Automotive Radar Sensors in the 77 GHz Frequency Band , 2012, IEEE Transactions on Microwave Theory and Techniques.

[18]  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).