An Inline V-Band WR-15 Transition Using Antipodal Dipole Antenna as RF Energy Launcher @ 60 GHz for Satellite Applications

Atul Varshney, Vipul Sharma, Issa Elfergani*, Chemseddine Zebiri, Zoran Vujicic, Jonathan Rodriguez, Athanasios D. Panagopoulos (Editor)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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This article demonstrates the design and development of WR-15 transition using an antipodal microstrip dipole antenna at a frequency of 60 GHz for space applications. An inline microstrip line to rectangular waveguide (MS-to-RWG) transition is proposed for the V-band (50–75 GHz) functioning. The RF energy is coupled and launched through an antipodal dipole microstrip antenna. Impedance matching and mode matching between the MS line and dipole are achieved by a quarter wave impedance transformer. This results in the better performance of transitions in terms of insertion loss (IL > −0.50 dB) and return loss (RL < −10 dB) for a 40.76% relative bandwidth from 55.57 GHz to 65.76 GHz. The lowest values of IL and RL at 60 GHz are −0.09 dB and −32.05 dB, respectively. A 50 μm thick double-sided etched InP substrate material is used for microstrip antipodal dipole antenna design. A back-to-back designed transition has IL > −0.70 dB and RL < −10 dB from 54.29 GHz to 64.07 GHz. The inline transition design is simple in structure, easy to fabricate, robust, compact, and economic; occupies less space because the transition size is exactly equal to the WR-15 length; and is prepared using an InP substrate with high permittivity of 12.4 and thickness of 50 μm. Thus, the devices have the lowest insertion loss value and lowest return loss (RL) value, of
Original languageEnglish
Article number3860
Number of pages16
Issue number23
Early online date23 Nov 2022
Publication statusE-pub ahead of print - 23 Nov 2022


  • Article
  • electrical equivalent circuit model
  • interconnects
  • microstrip line
  • mm-waves
  • V-band
  • WR-15 transition


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