DOAJ Open Access 2019

A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna

Zhe Wu Lin Yang Jiaji Wu Zhensen Wu Xi Li +1 lainnya

Abstrak

In this paper, a compact circularly polarized (CP) antenna with omnidirectional radiation is presented, which has a central symmetric configuration (CSC) and planar structure. It consists of three identical end-fire CP antenna units. Based on the combination of two parallel complementary current sources, each unit cell can be realized by a scalloped cavity and a couple of curved strip lines. Due to a single-layer circular structure with low profile, this configuration can be excited by a coaxial probe in the centre of the whole frame simultaneously. In addition, this prototype was miniaturized with a diameter of 32 mm (0.266λr, the wavelength of the centre frequency in free space is represented by λr) and a height of 1.5 mm (0.012λr). Centre resonance frequency 2.492 GHz is selected, resulting in an omnidirectional radiation and impedance bandwidth (VSWR ≤ 2) of 25 MHz (2481–2506 MHz).

Topik & Kata Kunci

Electrical engineering. Electronics. Nuclear engineering Cellular telephone services industry. Wireless telephone industry

Penulis (6)

Zhe Wu

Lin Yang

Jiaji Wu

Zhensen Wu

Xi Li

Yu Yun

Format Sitasi

APA MLA BibTeX

Wu, Z., Yang, L., Wu, J., Wu, Z., Li, X., Yun, Y. (2019). A Central Symmetrical and Low-Profile Omnidirectional Circularly Polarized Antenna. https://doi.org/10.1155/2019/4303417

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Informasi Jurnal

Tahun Terbit: 2019
Sumber Database: DOAJ
DOI: 10.1155/2019/4303417
Akses: Open Access ✓