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- Title
Low profile and wideband planar inverted-F antenna with polarisation and pattern diversities.
- Authors
Al Ja'afreh, Saqer; Yi Huang; Lei Xing
- Abstract
A low profile (height = 3 mm) and wideband dual coplanar feed planar inverted-F antenna (PIFA) is proposed for diversity applications over the frequency range of 2.35–3.25 GHz with a fractional bandwidth of 32%. It covers LTE bands 7, 38, 40, 41 and WiFi frequency bands. The design is based on a comparative study on the mutual coupling between different feed arrangements such as the parallel feed, coplanar feed and orthogonal feed. The results show that the coplanar feed arrangement exhibits a lower mutual coupling level. As a result, the coplanar feed is employed in the proposed antenna and the polarisation diversity is achieved by exciting two orthogonal radiation modes; the antenna fed by Feed 1 uses open ground plane slot in the horizontal plane, while the antenna fed by Feed 2 is linked to PIFA. The modified top plate provides a self-matching circuit for Feed 2. The isolation between the feeds is achieved by an L-shaped ground plane slot. Both simulated and measured results are obtained, and the results demonstrate that the proposed antenna is a very good candidate for mobile diversity and multiple-input and multiple-output applications.
- Subjects
BROADBAND communication systems; PLANAR inverted-F antennas; POLARIZATION (Nuclear physics); COMPARATIVE studies; COPLANAR waveguides; MIMO systems
- Publication
IET Microwaves, Antennas & Propagation (Wiley-Blackwell), 2016, Vol 10, Issue 2, p152
- ISSN
1751-8725
- Publication type
Article
- DOI
10.1049/iet-map.2015.0337