A Comparison of Three Feeding Networks for CubeSat L/S-dual-band Stacked-Patch Antennas

The CubeSat nanosatellite standard puts strict limitations on the antenna volume, resulting in a low impedance and axial-ratio (AR) bandwidths of patch antennas. The AR of a circularly polarized patch antenna can be improved with the introduction of a dedicated feeding network. However, the antenna gain cannot be influenced, and it will be comparable to a conventional single-feed CP patch. This is demonstrated on three different feeding networks for dual-feed stacked-patch antennas in L and S bands, based on T-junction dividers, Wilkinson dividers, and branchline couplers. Based on their performance and size, the model based on Wilkinson dividers has the optimal performance for CubeSat applications in L and S bands.


Presented at:
13th European Conference on Antennas and Propagation (EuCAP 2019), Krakow, Poland, March 31 - April 5, 2019
Year:
Apr 05 2019
Publisher:
The European Association on Antennas and Propagation (EurAAP)
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2019-04-18, last modified 2019-06-19

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