A Simple Approach for Design and Fabrication of Wilkinson Power Divider on Microstrip Line

Authors

  • Ashish Kumar Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, Uttarakhand, India.

Keywords:

Power Divider, Microstrip, Wilkinson, Pcaad, CorelDraw, Microwave

Abstract

This article deals with the design and fabrication of 1:2 Wilkinson power divider on microwave laminate for DC-10 GHz application. The design is realized on a high quality RT/ duroid laminate having the dielectric constant as 2.33 and strip thickness as 0.787 mm. The relevant design specifications, simulation, and the test results are described. The numerical calculations and simulations are performed in Personal Computer Aided Antenna Design (PCAAD) software and the artwork for fabrication is prepared in CorelDraw. A prototype of the design is fabricated and tested on the network analyzer. Some offsets are observed between the theoretical and practical results, which may be attributed to the wide tolerance in the dielectric permittivity specified for the RT/ duroid substrate.

References

1. Cohn S.B. A Class of Broadband Three-Port TEM-Mode Hybrids. IRE Trans. Microwave Theory Tech 1968; 16: 110–116.
2. Ekinge RB, A New Method of Synthesizing Matched Broad-Band TEM-Mode Three-Ports. IEEE Trans. Microwave Theory Tech 1971; 19: 81–88.
3. Hammerstad E, Jensen O. Accurate models for microstrip computer-aided design. IEEE MTT-S International Microwave Symposium Digest. Washington 1980; 407–409. http://dx.doi.org/10.1109/ MWSYM.1980.1124303.
4. Kraus G. An Interesting Program, PCAAD21 - An Antenna Analysis Program. VHF Communications 2001; 33: 166-175.
5. Kurokawa K. Power Waves and the Scattering Matrix. IEEE Trans. Microwave Theory Tech 1965; 13(2): 194- 202. 6. Parad LI, Moynihan RL. Split-Tee Power Divider. IRE Trans. Microwave Theory Tech 1965; 8: 91–95.
7. Pozar DM. Microwave Engineering. 3rd ed. Hoboken, New Jersey: John Wiley & Sons Inc. New York 2005.
8. Saleh AAM. Planar electrically symmetric n-way hybrid power dividers/combiners. IEEE Trans. Microwave Theory Tech 1980; 28(6): 555–563.
9. Wilkinson EJ. An n-Way Hybrid Power Divider. IRE Trans. Microwave Theory Tech 1960; 8: 116-118.
10. Product Datasheet-1: https://www.rogerscorp.com/ documents/606/acs/RT-duroid-5870-5880-Data-Sheet. pdf.

Published

2019-06-28