2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

IEEE Microwave and Guided Wave Letters
Volume 10 Number 12, December 2000

Table of Contents for this issue

Complete paper in PDF format

A Compact, Planar, Eight-Port Waveguide Power Divider/Combiner: The Cross Potent Superhybrid

Christopher D. Nantista and Sami G. Tantawi Member, IEEE

Page 520.

Abstract:

In this letter, we present a novel four-way divider/combiner in rectangular waveguide. The design is completely two-dimensional (2-D) in the h-plane, with eight-fold mirror symmetry,and is based on a recent four-port hybrid design [6]. In combining mode, it can function as a phased array with four inputs and four outputs. The planar nature of this design provides advantages, such as the freedom to increase the waveguide height beyond the over-moding limit in order to reduce field strengths. Along with its open geometry, this makes it ideal for high-power applications where rf break down is a concern. Design criteria, field-solver simulation results,and prototype measurements are presented.

References

  1. The NLC Design Group, "Zeroth-order design report for the next linear collider", LBNL-PUB 5424, SLAC Report 474, and UCRL-ID 124 161, May 1996.
  2. The JLC Design Group, "JLC design study", KEK, Tsukuba, Japan, KEK-REPORT-97-1, Apr. 1997.
  3. H. Mizuno and Y. Otake, "A new RF power distribution system for X band linac equivalent to an RF pulse compression scheme of factor 2N", in 17th Int. LINAC'94, Tsukuba, Japan,Aug. 21-26 1994 .
  4. S. G. Tantawi et al., "A multi-moded RF delay line distribution system for the next linear collider", in 8th Workshop on Advanced Accelerator Concepts, Baltimore, MD, July 5-11 1998.
  5. A. E. Vlieks et al., "High power RF component testing for the NLC", in 19th Int. LINAC'98, Chicago, IL, August 23-28 1998,SLAC-PUB-7938 (1998).
  6. C. D. Nantista, et al., "Planar waveguide hybrids for very high power RF", in 1999 Particle Accelerator Conf., New York, Mar. 29-Apr. 2 1999.
  7. H. J. Riblet, "The short-slot hybrid junction", Proc. IRE , p.  180, Feb.  1952.
  8. "High frequency structure simulator, version A.04.01", ", copyright 1984-1995 Ansoft Corp., copyright 1990-1995 Hewlett-Packard Co..
  9. "HP high frequency structure simulator, version 5.3", ", copyright 1996-1998 Hewlett-Packard Co..