Broadband MIMO antenna for HiperLAN/2, WLAN, and WiMAX applications with high isolation

Abstract

This paper presents a multiple-input and multiple-output dual-element planar inverted-F antenna (PIFA) array for broadband operation covering the HIgh PERformance radio Local Area Network/2 (5.2 GHz/5.6 GHz), Wireless Local Area Network (5.2 GHz/5.8 GHz), and the Worldwide Interoperability for Microwave Access (5.5 GHz) bands for the compact wireless communication devices. The antenna dimension is reduced substantially with a miniature ground plane. The PIFA array provides a large bandwidth (670 MHz) and a high isolation between its ports less than −26 dB. The proposed antenna has been analyzed and designed with Ansoft HFSS v.11. Then a prototype was fabricated and tested for its performance in terms of bandwidth, S-parameters, and radiation pattern. A parametric study is made to analyze the effect of different PIFA parameters on the operating frequency and the S-parameters. The diversity performances are evaluated using computer simulation technology microwave studio (CSTMWS). The broadband performance and the high isolation are achieved in both simulation and measurement.

A broadband MIMO antenna's channel capacity for WLAN and WiMAX applications

“…Figure 3 [23] shows the dual-element antenna array used in this study, it is a broadband dualelement PIFA antenna array for MIMO application. The symmetrical back-to-back antenna elements are placed 2.7 mm from top and 3 mm from side on the system printed circuit board (PCB).…”

“…In this previous paper [23], we presented a broadband PIFA antenna array for compact wireless communication device, which has provided a large bandwidth (670 MHz), a high isolation between its ports less than -26 dB with a good diversity performance. In this work, the channel capacity of this antenna array which operate at 5 GHz is investigated in a realistic indoor/outdoor and outdoor MIMO channel models, performed for NLOS scenario, by using a tool based on the ray tracing method.…”

“…As a consequence of this, more than 26 dB of isolation has been obtained across the operational bandwidth thanks to the fact that the two PIFA antennas have been located 0.74 l apart on the PCB. El Bakouchi et al [23] provides a comprehensive presentation of the MIMO antenna's underlying architecture. Both the wireless local area network (WLAN) frequency bands (5.15-5.35 GHz and 5.725-5.825 GHz) and the worldwide interoperability for microwave access (WiMAX) frequency bands (5.25-5.85 GHz) are utilized by the antenna during operation.…”

Triple-band operation achievement via multi-input multi-output antenna for wireless communication system applications

“…Recently multi-input multi-output (MIMO) antennas have gained popularity owing to their suitable performance in different communication applications. Multi band notched applications [1–3], Hyperlan, WiMAX, and WLAN applications [4–6], ISM band applications [7], WiFi and LTE applications [8–10], GPS/UMTS [11], GSM, PCS, LTE2300, and 5 G bands [12] are some of the possible applications for these antennas. “MIMO” antenna term is dedicated to a technology in which more than one antenna are adopted on both source and destination sides.…”