DESIGNING AND SIMULATING WAVEGUIDE COMBINER 16:1 FOR HIGH POWER APPLICATIONS IN FREQUENCY RANGE OF 8-12 GHZ WITH WAVE TRANSDUCER

Abstract

In this paper, a new design of the combiner and mode transducer in X-band is proposed. A two-step structure is applied within the combiner structure to improve isolation between ports. High isolation and wide bandwidth are the major features of the proposed combiner. The results of this paper, simulated by CST, clearly show that the return loss is within an acceptable range. The model converter structure in this paper, as compared to similar structures, is configured in a way that it has less resonance. In this regard, the resonation of the proposed design has successfully been reduced up to one third of similar structures

Keywords

• combiner, wave transducer

References

1. [1] Ye T, Xu J, editors. Design of a novel millimeter-wave power combiner. Cross Strait QuadRegional Radio Science and Wireless Technology Conference (CSQRWC), 2011; 2011: IEEE.
2. [2] Chang K, Sun C. Millimeter-wave power-combining techniques. IEEE Transactions on Microwave Theory Techniques. 1983;31:91-107.
3. [3] DeLisio MP, York RA. Quasi-optical and spatial power combining. IEEE Transactions on Microwave Theory and Techniques. 2002;50(3):929-36.
4. [4] Khan P, Epp L, Silva A. A Ka-Band Wide-Bandgap Solid-State Power Amplifier: Architecture Performance Estimates. The Interplanetary Network Progress Report. 2005;42:163.
5. [5] Hoag H, Tantawi S, Callin R, Deruyter H, Farkas Z, Ko K, et al., editors. Flower-petal mode converter for NLC. Particle Accelerator Conference, 1993, Proceedings of the 1993; 1993: IEEE. [6] Marie. G.R.P.: 805510. British Patent. 1958.
6. [7] Saad S, Davies J, Davies O. Analysis and design of a circular TE01 mode transducer. IEE Journal on Microwaves, Optics and Acoustics. 1977;1(2):58-62.
7. [8] P. Khan, L. Epp, and A. Silva, “Ka-Band Wide-Bandgap Solid-State Power Amplifier: Architecture Identification,” The Interplanetary Network Progress Report, vol. 42-162, Jet Propulsion Laboratory, Pasadena, California, pp. 1–16, August 15, 2005.
8. [9] P. Khan, L. Epp, and A. Silva, “Ka-Band Wide-Bandgap Solid-State Power Amplifier: General Architecture Considerations,” The Interplanetary Network Progress Report, vol. 42-162, Jet Propulsion Laboratory, Pasadena, California, pp. 1–19, August 15, 2005.

9. [10] A. R. Khan, L. W. Epp, D. J. Hoppe, and D. Kelley, Thin-Film Resistive Septum Waveguide Power Combiner, provisional patent application no. 48,467, docket number CIT-4300-P, filed January 21, 2005.
10. [11] CST Computer Simulation Technology AG, 2012, www.cst.com