Reconfigurable Wilkinson power divider with unity to 8dB output power differences using one varactor diode

A. H. Ali, K. W. Hameed, N. T. Ali, M. S. Bakr, R. Asif, R. A. Abd-Alhameed, N. J. McEwan

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A novel reconfigurable equal to unequal Wilkinson power divider is presented. The proposed power divider adopts coupled microstrip line technique to implement a high impedance section to have unequal output power ratio. A varactor diode is placed between the coupled lines to achieve reconfigurability by changing the reverse biasing voltage on the varactor diode. This enables equal to 8 dB power division ratios between the output ports. A wide range of biasing voltage is used to achieve the smooth power division ratio. A prototype hardware is designed, fabricated and measured to validate the proposed approach. In the equal power division ratio scenario, the measured performance shows a bandwidth of 600 MHz at 5.4 GHz centre frequency. A higher bandwidth of 750 MHz is obtained in the case of unequal power division ratios.

Original languageEnglish
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
ISBN (Electronic)9781785618161, 9781785618437, 9781785618468, 9781785618871, 9781785619427, 9781785619694, 9781839530036
ISBN (Print)9781785617911
Publication statusPublished - 2018
EventLoughborough Antennas and Propagation Conference 2018, LAPC 2018 - Loughborough, United Kingdom
Duration: 12 Nov 201813 Nov 2018

Publication series

NameIET Conference Publications


ConferenceLoughborough Antennas and Propagation Conference 2018, LAPC 2018
Country/TerritoryUnited Kingdom


  • Reconfigurable power divider
  • Unequal power divider
  • Varactor diode
  • Wilkinson power divider

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