A novel implementation of N-way Wilkinson power divider using series and parallel combination of coaxial cables has been proposed in this paper. This arrangement results in a very compact power divider at VHF and lower frequencies, has good isolation between all the ports and is capable of handling high power with a low insertion loss. Frequency tuning and phase equalisation are easily accomplished using this technique. The measured results on fabricated 7-way and 4-way power dividers exhibited good input and output matching as well as amplitude and phase balance with an overall length of less than λ/8 at 221 MHz, with potential for further reduction in length.
2. Grebennikov, A., "Power combiners, impedance transformers and directional couplers: Part II," High Frequency Electronics, 42-53, Jan. 2008.
3. Aminov, G., E. Levi, and H. Matzner, "RadialWilkinson power divider," COMCAS 2011, Nov. 2011.
4. Badger, G., "A new class of coaxial line transformers," Ham Radio Mag., Part 1, 12-18, Feb. 1980, and Part 2, 18-29, 1980.
5. Munk, B. A., Metamaterials: Critique and Alternatives, John Wiley & Sons, Inc., New Jersey, 2009.