Ultra-Compact Self-Quadruplexing Microfluidically Frequency Reconfigurable Slot Antenna Using Half-Mode SIW

Rusan Kumar Barik; Sławomir Kozieł

doi:10.1016/j.aeue.2024.155343

Ultra-Compact Self-Quadruplexing Microfluidically Frequency Reconfigurable Slot Antenna Using Half-Mode SIW

Abstract

In this brief, the design of an ultra-compact self-quadruplexing frequency reconfigurable antenna (SQFRA) utilizing a half-mode substrate-integrated waveguide (HMSIW) and microfluidic channels is discussed. Four HMSIW cavities fed by four microstrip lines and slots are used to construct a highly compact antenna. The microstrip feedings to the HMSIW cavities are applied in such a way that the proposed antenna exhibits self-quadruplexing properties with good isolation. The working principle is explained by employing surface current densities, and an equivalent circuit model. In order to achieve frequency tunability, two or three empty sockets associated with each HMSIW cavity are drilled from the bottom plane and filled with dielectric fluids. The effect of height and locations of fluidic channels are discussed in detail. To validate the proposed tunability, a prototype of SQFTA is fabricated and demonstrated. The fabricated antenna provides frequency ranges of 16.46%, 17.84%, 11.99%, and 14.94% at the first, second, third, and fourth frequency bands, respectively. The SQFTA exhibits a small footprint of 0.084λg2, which makes it the most compact self-quadruplexing tunable antenna in the open literature. Furthermore, the fabricated antenna features high isolation greater than 24.7dB, and realized gain greater than 3.55 dBi at all the operating frequencies.

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Authors (2)

Rusan Kumar Barik
Sławomir Kozieł prof. dr inż.

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Keywords

HALF-MODE RESONATORS, SELF-QUADRUPLEXING, RECONFIGURABLE, ANTENNA, MICROFLUIDIC

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS no. 180,
ISSN: 1434-8411

Language:

English

Publication year:

2024

Bibliographic description:

Barik R. K., Kozieł S.: Ultra-Compact Self-Quadruplexing Microfluidically Frequency Reconfigurable Slot Antenna Using Half-Mode SIW// AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS -Vol. 180, (2024), s.1-9

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