A CSRR Loaded Triple-Band Microstrip Patch Antenna with Suppressed Higher Order Modes for Sub-6 GHz Phased Array Application

Barad, D and Dash, JC and Sarkar, D and Srinivasulu, P (2022) A CSRR Loaded Triple-Band Microstrip Patch Antenna with Suppressed Higher Order Modes for Sub-6 GHz Phased Array Application. In: 2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022, 12-16 December 2022, Bangalore, pp. 903-908.

PDF mapacon_2022.pdf - Published Version Restricted to Registered users only Download (8MB) | Request a copy

Abstract

In this paper, we design a CSRR loaded tripe band antenna with suppressed higher order modes. The CSRR loading is incorporated in a square microstrip antenna such that in addition to the triple band response at 3.52 GHz, 3.865 GHz, 4.39 GHz, antenna miniaturization is obtained yielding an overall footprint of 0.23λ0×0.23λ0, where λ0 is the free space wavelength at 3.52 GHz. Further, the higher order mode suppression is achieved using a plated through hole (PTH) placed close to the CSRR loading position. The proposed antenna achieves satisfactory impedance matching ≤ -15 dB for all three operating frequencies. Further, the proposed antenna is arranged in 4×4 configuration with an inter-element spacing of 0.25λ0 for phased array application. This 4×4 array configuration enables beam steering up to 80° without grating lobes, while maintaining lowest side lobe level ≥ 19dB and satisfactory array gains of 12 dBi, 13 dBi, 14 dBi at 3.52 GHz, 3.865 GHz, and 4.39 GHz respectively are achieved. The proposed concept is experimentally validated by S-parameter and pattern measurements on fabricated prototype. © 2022 IEEE.

Item Type:	Conference Paper
Publication:	2022 IEEE Microwaves, Antennas, and Propagation Conference, MAPCON 2022
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Antenna lobes; Microstrip antennas; Microwave antennas; Optical resonators; Ring gages; Scattering parameters; Slot antennas, Complementary split ring resonator; Complementary split-ring resonator; High order mode; Higher-order-mode; Micro trip antenna; Micro-trips; Phased array antennas; Side lobe level; Side lobes, Antenna phased arrays
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	28 Mar 2023 09:58
Last Modified:	28 Mar 2023 09:58
URI:	https://eprints.iisc.ac.in/id/eprint/81212

Actions (login required)

View Item