A Low Profile High Gain Ultra Lightweight Circularly Polarized Annular Ring Slot Antenna for Airborne and Airship Applications

Autor: Nouman Rasool, Huang Kama, Muhammad Abdul Basit, Mujeeb Abdullah
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: IEEE Access, Vol 7, Pp 155048-155056 (2019)
Druh dokumentu: article
ISSN: 2169-3536
14414139
DOI: 10.1109/ACCESS.2019.2949683
Popis: In this paper a low profile circularly polarized annular ring slot antenna (CPARSA) with high gain is presented. An inverted U-shaped meandered slot is cut at the inner patch of annular ring to obtain the circularly polarized (CP) radiation. This annular slot loaded ground plane on a substrate thickness of 0.5 mm results in a very low profile (0.009λ0) antenna in term of free space wavelength at its center operating frequency. The largest side lengths of octagonal shaped antenna are 0.89λ0 × 0.89λ0 according to its center frequency. Measured impedance bandwidth of 23.54% from 5.4 GHz - 7.0 GHz (for |S11| ≤ -10 dB) and AR bandwidth (AR
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