A Compact Dual-Band Self-Diplexing MIMO Patch Antenna for ISM and X-Band Communications

Babu, B. Anil; Madhav, B. T. P.; Srilatha, K.; Sriram, B. M. S.; Hemanth, A. V.

doi:10.1590/2179-10742022v21i2259539

B. Anil Babu

Antennas and Liquid Crystal research Centre (ALRC), Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 193040001@kluniversity.in, btpmadhav@kluniversity.in, 193040096@kluniversity.in 180040385ece@gmail.com, 180040415ece@gmail.com

https://orcid.org/0000-0002-7248-3406

B. T. P. Madhav

Antennas and Liquid Crystal research Centre (ALRC), Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 193040001@kluniversity.in, btpmadhav@kluniversity.in, 193040096@kluniversity.in 180040385ece@gmail.com, 180040415ece@gmail.com

https://orcid.org/0000-0002-6893-6978

K. Srilatha

Antennas and Liquid Crystal research Centre (ALRC), Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 193040001@kluniversity.in, btpmadhav@kluniversity.in, 193040096@kluniversity.in 180040385ece@gmail.com, 180040415ece@gmail.com

https://orcid.org/0000-0003-1490-4759

B. M. S. Sriram

Antennas and Liquid Crystal research Centre (ALRC), Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 193040001@kluniversity.in, btpmadhav@kluniversity.in, 193040096@kluniversity.in 180040385ece@gmail.com, 180040415ece@gmail.com

https://orcid.org/0000-0002-6721-3145

A. V. Hemanth

Antennas and Liquid Crystal research Centre (ALRC), Department of ECE, KLEF, Vaddeswaram, Guntur, Andhra Pradesh, India 193040001@kluniversity.in, btpmadhav@kluniversity.in, 193040096@kluniversity.in 180040385ece@gmail.com, 180040415ece@gmail.com

https://orcid.org/0000-0002-0973-8795

Parameters	Values(mm)	Parameters	Values(mm)
ls	50	cl	8
ws	50	cw	1.3
lp	30.5	hl	9
wp	30.5	hp	5
h	1.6	hw	1
fw	3.8	vw	1
fl	13	vl	12

Ref. No.	Size (mm³)	Substrate/ε_r	No. Ports	Center Frequency (GHz)	Gain (dBi)	Isolation (dB)	Frequency ratio
[⁵[5] A. Boukarkar, X. Q. Lin, Y. Jiang, and Y. Q. Yu. “A tunable dual-fed self-diplexing patch antenna,” IEEE Transactions on Antennas and Propagation, vol. 65, no. 6, pp 2874-2879, 2017.]	38×38×1.96	F4B/2.55	2	4.37 4.63	3.82 4.48	32	1.37
[¹³[13] N. Sourav, A. Mohan. “A self‐diplexing MIMO antenna for WLAN applications,” Microwave and Optical Technology Letters, vol. 61, no. 1, pp 239-244, 2019.]	50×24×1.6	FR-4 epoxy/4.4	4	5.1 5.7	2.02 2.96	15	1.62
[¹⁴[14] C. Mao, Z. H. Jiang, D. H. Werner, S. S. Gao and W. Hong, “Compact Self-Diplexing Dual-Band Dual-Sense Circularly Polarized Array Antenna With Closely Spaced Operating Frequencies,” in IEEE Transactions on Antennas and Propagation, vol. 67, no. 7, pp. 4617-4625, July 2019.]	100×100×2.9	Rogers 4003C/3.38	2	7.55 8.14	10 10.5	27	1.08
[¹⁵[15] Y. Lu and Y. Lin, “A Mode-Based Design Method for Dual-Band and Self-Diplexing Antennas Using Double T-Stubs Loaded Aperture,” in IEEE Transactions on Antennas and Propagation, vol. 60, no. 12, pp. 5596-5603, Dec. 2012.]	50×50×1.75	FR4/4.4	1	2.45 5.5	1.9 4.4	25	1.3-3
[¹⁶[16] C. Mao, S. Gao and Y. Wang, “Dual-Band Full-Duplex Tx/Rx Antennas for Vehicular Communications,” in IEEE Transactions on Vehicular Technology, vol. 67, no. 5, pp. 4059-4070, May 2018.]	50×50×2.62	RO 4003/3.38	2	4.7 6	10.2 12.5	30	1.27
Proposed work	50×50×1.6	FR-4 lossy/4.3	2	5.8 8	5.46 3.59	13	1.20-1.33

E C C = \frac{|\begin{matrix} s_{11} \cdot s_{12} + s_{21} \cdot s_{22} \end{matrix}|}{(1 - {|s_{11}|}^{2} - {|\begin{matrix} s_{21} \end{matrix}|}^{2}) (1 - {|\begin{matrix} s_{22} \end{matrix}|}^{2} - {|s_{12}|}^{2})}

Brasil

Brasil

A Compact Dual-Band Self-Diplexing MIMO Patch Antenna for ISM and X-Band Communications

Abstract