CIRCULAR SLOT ANTENNAS USING L-SHAPED PROBE FOR BROADBAND CIRCULAR POLARIZATION | Zendy

Ronald Joseph | Zendy; Syuhei Nakao | Zendy; Takeshi Fukusako | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

CIRCULAR SLOT ANTENNAS USING L-SHAPED PROBE FOR BROADBAND CIRCULAR POLARIZATION

Author(s) -

Ronald Joseph,

Syuhei Nakao,

Takeshi Fukusako

Publication year - 2011

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc10110913

Subject(s) - broadband , circular polarization , physics , polarization (electrochemistry) , optics , acoustics , chemistry , microstrip

Novel circularly polarized antennas with a circular radiating aperture for broadband characteristics are presented in this paper. The vertical and horizontal components of the L-shaped probe are separated and placed at the front and back side of the substrate. The antennas are excited by a microstrip line which is connected to the vertical component of the L-shaped probe and electromagnetically couples the signal to the horizontal component of the L-shaped probe. A novel concept of placing stub in the slot of a planar antenna, by observing the electric fleld vector behaviour in the slot, is proposed to enhance the axial ratio (AR) bandwidth by around 10%. Unidirectional patterns can be obtained by having a cylindrical cavity of height ‚g=4 behind the antenna and is efiective when no stubs are placed in the slot. A < 3dB AR bandwidth of 39.5% with cavity and 41.18% without cavity but with stub in the slot is obtained in simulation and the results well match with the measurement.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research