Compact Multiband Microstrip Printed Slot Antenna Design for Wireless Communication Applications

Abstract

In this paper, a compact multiband printed antenna is proposed to cover four resonant bands in the range of 1-6 GHz. The antenna structure is inspired from that of the classical multi-cavity magnetron resonator. The antenna comprises a slot annular ring structure in the ground plane of an Isola FR4 substrate having Ԑr = 3.5 and thickness h=1.5 mm. The outer circle of the annular ring is loaded with radial arranged small circular slots. On the opposite side of the substrate, the antenna is fed with a 50-Ohm microstrip line. To investigate the effect of different antenna elements on the antenna performance, a parametric study is conducted. The antenna is simulated, fabricated, and measured. The simulated 10 dB return loss bandwidths for the four resonant bands are 35% (1.53–2.11GHz), 14% (2.9–3.34GHz), 12% (4.2–4.75GHz), and 9% (4.94–5.39GHz), respectively. Thus, the antenna is a proper candidate for many in use bands of wireless systems (1.65, 3.14, 4.44, 5.24 GHz), including LTE-FDD, GNSS, GSM-450, W-CDMA/HSPA/k, 802.11a, and IEEE 802.11ac WLAN. The results indicate that the designed antenna has quad-band resonant responses with substantial frequency ratios of f4/f3, f3/f2 and f2/f1. Besides, the antenna offers reasonable radiation characteristics with a gain of 2.5, 4.0, 6.2, and 4.2 dBi, throughout the four resonant bands.

Design of quad band microstrip patch antenna with slits and slots

“…The sizes of the antenna are 116 ×40 ×1.6 mm3. Monopole MPA antenna is proposed for multiband applications [24]. The size of the antenna is 53.8 × 53.8 mm2, and the structure is inspired by multi-cavity magnetron resonator.…”

Some Aspects on Design, Simulation, Fabrication, and Analysis of a Multi Frequency Micro-Strip Antenna

“…for achieving multi band operation. A common method for achieving a multiband is to cut slots and slits of different shapes on the patch [20][21][22][23][24][25][26][27][28], the main challenges as reported by other researcher are to determine the proper position of the shorting posts, stubs, slots etc. and measurements of the width and length of the slots, which leads to an overall complicated process to design the antenna.In the proposed work, we have designed and developed a multi band MSA for wireless communication system to operate at 1.8 GHz and 2.4 GHz by cutting a slit with an inclination angle over the MSA rather than other classical approach.…”

“…The multi band operation was achieved by using a slot annular ring structure in the ground plane. It helps the antenna to resonate at 1.53-2.11 GHz, 2.9-3.34 GHz, 4.2-4.75 GHz and 4.94-5.39 GHz[24]. F. I. Khalifa, et al reported a U-shaped slot MSA effectively operated at 2.4GHz and 4.6GHz for WLAN applications.…”

Reconfigurable Monopole Antenna Design Based on Fractal Structure for 5g Applications

“…In wireless communication systems, many applications operate at frequencies below 6 GHz to ensure high speed guided transmission [1]. For this reason, choosing the low frequencies antenna has declined in recent times [1].…”

“…In wireless communication systems, many applications operate at frequencies below 6 GHz to ensure high speed guided transmission [1]. For this reason, choosing the low frequencies antenna has declined in recent times [1]. The antenna is one of the most essential components of wireless communications systems because it is used in both transmitter and receiver sides [2].…”