Bandwidth-Enhanced Low-Profile Magneto-Electric Dipole Antenna with Shorting Parasitic Elementsopen access
- Authors
- Trinh-Van, S.; Van, Trinh T.; Yang, Y.; Lee, K.; Hwang, K.C.
- Issue Date
- 2021
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Antenna feeds; Antenna radiation patterns; Antennas; Bandwidth enhancement; Broadband antennas; Dipole antennas; Loaded antennas; low profile; magneto-electric (ME) dipole; Magnetoelectric effects; shorting parasitic element; wideband
- Citation
- IEEE Access, v.9, pp 64852 - 64859
- Pages
- 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE Access
- Volume
- 9
- Start Page
- 64852
- End Page
- 64859
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/90037
- DOI
- 10.1109/ACCESS.2021.3076493
- ISSN
- 2169-3536
- Abstract
- This paper presents a low-profile magneto-electric (ME) dipole antenna with an enhanced impedance bandwidth realized by the loading of shorting parasitic elements. The antenna contains a horizontal planar electric dipole antenna, a Γ-shaped shorted patch antenna, a pair of parasitic L-shaped shorted patches, and a direct feed. By loading of the parasitic L-shaped patches such that they are shorted to the ground, the proposed antenna attains a significant bandwidth enhancement while maintaining excellent broadside radiation characteristics. An antenna prototype with a low profile of only 0.11λ0 was fabricated and tested (λ0 is the free-space wavelength referring to the center frequency). The antenna achieves a measured impedance bandwidth of 75.64% (1.34–2.97 GHz) for a voltage standing wave ratio (VSWR) of less than 2. Within the operating band, the measured gain ranges from 6.23 to 8.49 dBi. Additionally, stable radiation patterns on both E- and H-planes with a high front-to-back ratio of more than 20.5 dB are achieved. CCBY
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