Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

In this article, a high gain and compact 4 × circularly polarized microstrip patch antenna array is reported for the data transmission of next-generation small satellite. The radiating element realized by conventional model with truncated corners. A two-stage sequential rotational phase feeding adopted that broadens operating bandwidth array. stub embedded in feed, which results better performance terms S-parameters phases at output ports than feed without open stub. prototype fabricated measured. Fulfilling application requirements satellites, has left-handed more 12 dBic axial ratio level below 1.5 dB ±10∘ angular space respect to broadside direction whole from 8.05 GHz 8.25 GHz. Moreover, varies 15 15.5 desired band. radiation patterns are measured; both co- X-pol validated.