A Novel Wideband Magnetoelectric Dipole Antenna with Circular Polarization Applied to CubeSat

Sousa, Bruno Matias de; Duarte Júnior, José Garibaldi; Silva Neto, Valdemir Praxedes da

doi:10.1590/2179-10742024v23i2280888

Acessibilidade / Reportar erro

Brasil

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Article • J. Microw. Optoelectron. Electromagn. Appl. 23 (2) • 2024 • https://doi.org/10.1590/2179-10742024v23i2280888 copy

A Novel Wideband Magnetoelectric Dipole Antenna with Circular Polarization Applied to CubeSat

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

In this work a broadband Magnetoelectric (ME) dipole antenna for the Global Navigation Satellite System (GNSS) applied to nanosatellites is proposed. The antenna consists of a reflective cavity with open walls containing four gaps to enhance the axial ratio (AR) bandwidth. Additionally, it includes two ME dipoles formed by two pairs of vertical and horizontal copper plates, one of which is trapezoidal and a T-Γ-shaped cross-feeding structure. A prototype was designed and subsequently manufactured and measured. The experimentally obtained results exhibit consistent agreement with simulated outcomes, demonstrating that the antenna has a wide impedance bandwidth of 111.36% from 1.13 GHz to 1.62 GHz for the Voltage Standing Wave Ratio (VSWR) ≤ 2 and a 3 dB AR bandwidth of 120.45% from 1.10 GHz to 1.63 GHz. Within this range, high gain (≥8.5 dBi) and high radiation efficiency (90%) can be achieved. Furthermore, the antenna exhibits right-hand circular polarization (RHCP) and possesses good unidirectional radiation characteristics with a high front-to-back ratio (≥ 20 dB).

Index Terms
CubeSat; GNSS; Magnetoelectric Dipole; Wideband Antenna

Parameters	GL	GW	GH₁	GH₂	G₁	g₂	l₁	l₂	l₃	l₄	l₅	w₁	w₂	w₃
Values/mm	190	170	55	25	90	100	27	27	60	40	11	40	50	22
Parameters	w4	s₁	s₂	s₃	s₄	s₅	s₆	s₇	h₁	h₂	h₃	h₄	h₅	h₆
Values/mm	2	11.5	13	2	2	17.4	34	2.5	0.7	4	51	21	10	13

Ref.	Fc (GHz)	Antenna Size (λq)	Impedance Bandwidth	3dB AR Bandwidth	Peak Gain (dBi)	FBR (dB)	Antenna Structure	CubeSat
[¹⁷[17] K. Kang, Y. Shi, C.-H. Liang, “A wideband circularly polarized magnetoelectric dipole antenna,” IEEE Antennas and Wireless Propagation Letters, vol. 16, p. 1647-1650, 2017.]	2.615	1.607λ₀× 1.294λ₀× 0.267λ₀	(1.76- 3.46 GHz)	(1.68- 3.55 GHz)	9.0	N/A	Simple	6U
[¹²[12] P. Mohammadi, M. Rezvani, T. Siahy, “A circularly polarized wide-band magneto-electric dipole antenna with simple structure for bts applications,” International Journal of Electronics and Communications, vol. 105, p. 92-97, 2019.]	2.15	1.075λ₀× 1.075λ₀× 0.215λ₀	(1.5- 2.7 GHz)	(1.7- 2.6 GHz)	6.2	>20	Simple	6U
[¹⁵[15] J. Tao, Q. Feng, “Dual-band magnetoelectric dipole antenna with dual-sense circularly polarized character,” IEEE Transactions on Antennas and Propagation, vol. 65, p. 5677-5685, 2017.]	2.775 and 5.15	0.925λ₀× 0.925λ₀× 0.283λ₀	(2.15-3.4 and 4-6.3 GHz)	(2.5-3.35 and 5-5.7 GHz)	8.0	>22	Simple	3U
[¹¹[11] H. Tran, S. X. Ta, I. Park, “Single-feed, wideband, circularly polarized, crossed bowtie dipole antenna for global navigation satellite systems,” Journal of Electromagnetic Engineering and Science, vol. 14, p. 299-305, 2014.]	1.385	0.480λ₀× 0.480λ₀× 0.250λ₀	(1.05- 1.79 GHz)	(1.12- 1.64 GHz)	6.9	>12	Simple	3U
[⁷[7] H. Zhang, Y. Guo, G. Wang, “A design of wideband circularly polarized antenna with stable phase center over the whole gnss bands,” IEEE Antennas and Wireless Propagation Letters, vol. 18, p. 2746-2750, 2019.]	1.385	0.369λ₀× 0.369λ₀× 0.139λ₀	(1.04- 2.0 GHz)	(1.1- 1.88 GHz)	4.0	N/A	Complex	3U
[¹⁴[14] S. Fu, X. Zhao, C. Li, Z. Wang, “Broadband circularly polarized tapered dipole antenna for gnss applications,” International Journal of RF and Microwave Computer-Aided Engineering, vol. 32, p. e23367, 2022.]	1.385	0.614λ₀× 0.614λ₀× 0.139λ₀	(0.98- 1.64 GHz)	(1.16- 1.65 GHz)	8.0	>16	Complex	3U
Proposed	1.385	0.877λ₀× 0.785λ₀× 0.254λ₀	(1.13- 1.62 GHz)	(1.Ι0- Ι.63 GHz)	8.69	>20	Simple	6U

Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo Praça Mauá, n°1, 09580-900 São Caetano do Sul - S. Paulo/Brasil, Tel./Fax: (55 11) 4238 8988 - São Caetano do Sul - SP - Brazil
E-mail: editor_jmoe@sbmo.org.br

Acompanhe os números deste periódico no seu leitor de RSS