Modified Π-Shaped Slot Loaded Multifrequency Microstrip Antenna

Abstract

Abstract-A single layer, single feed microstrip antenna with multifrequency operation in compact size is proposed. A modified inverted π-shaped slot is introduced at the left side radiating edge of the patch to reduce the size of the antenna by reducing the resonant frequency. Multiple resonant frequencies with increased frequency ratio are also obtained by cutting the modified inverted π-shaped slot. The measured result shows that the proposed antenna resonates at 3.3, 4.55, 5.56 and 6.08 GHz in microwave S and C band. The size of the proposed patch is only 0.176λ L × 0.132λ L at its lower operating frequency. The proposed patch antenna has achieved 68% size reduction as compared with the conventional rectangular microstrip antenna with same patch area. An extensive analysis of the reflection coefficient, voltage standing wave ratio, gain, radiation efficiency and radiation pattern of the proposed antenna is presented in this paper. The proposed antenna is suitable for WiMax and HiPERLAN wireless systems.

A Modified E-Shaped Compact Printed Antenna for 28 GHz 5G Applications

“…The design and implementation of printed antenna technology have become very popular in recent decades due to its various benefits such as minimum manufacturing cost, miniaturized dimension, and light weight. The printed antennas can be designed carefully to acquire compactness [1][2][3][4], high gain [5], multiband [6,7], wideband [8], and ultra-wideband [9,10] operation to support different popular wireless communication applications such as PCS, Bluetooth, RFID, WLAN, HiPERLAN, Wi-MAX, IMT, UMTS, and 4G LTE systems. However, based on most of the forecasts, the fifth-generation (5G) wireless communication system with high speed data rate and wider bandwidth will be considered as the most promising next generation wireless technology.…”

Stepped Slot Patch Antenna With Copper Ground Plane and Solar Cell Ground Plane for Future Mobile Communications

“…A novel single probe-fed, single-layer, and single-patch triple-band microstrip antenna is presented [7], by incorporating two identical U-slots in the patch, which can resonate for WLAN 2.4 GHz, WLAN 5.8 GHz, and 3.5 GHz of 5G (the fifth-generation mobile communication) operation. A modified π-shaped slot loaded multifrequency microstrip antenna is presented [8] and resonates at 3.3, 4.55, 5.56, and 6.08 GHz in microwave S and C bands. A compact low-profile and quad-band antenna with three differently shaped slots, suitable to be integrated with a portable device for varieties of wireless communication applications is presented [9] and covers frequency bands from 2.39 to 2.48 GHz for lower WLAN, 3.64-3.73 GHz for downlink, and 5.98-6.30 GHz for uplink standard satellite communications, and 6.97-7.18 GHz mainly used by the Indian National Satellite System.…”

A miniaturized printed UWB antenna with dual notching for X-b and and aeronautical radio navigation applications

“…Recently many researchers have carried out investigations on microstrip antennas for achieving wideband operation by implementing etched substrate mechanism [6] and connected square-shaped open-loop resonator [7]. Multiband configurations can be achieved by employing a slotted patch [8], defected ground plane [9], and parasitic open-loop ring resonators [10,11]. Similarly, TELKOMNIKA Telecommun Comput El Control  A miniaturized printed UWB antenna with dual notching for X-band and… (Mohammad Ahmad Salamin) 2869 the researchers have proposed a variety of printed monopole antennas for UWB application [12][13][14][15][16][17][18][19].…”