Printed and double‐sided dipole array antennas with a parallel reflector

Abstract

This article describes the novel design of printed and doubled-sided dipole array antennas with parallel reflector in the application of 2.4 GHz ISM band operated in WiFi access point. The printed dipole array antenna consists of one dipole array arranged back to back and can be easily formed by printing on both sides of a dielectric substrate and is suitable for integration with monolithic microwave integrated circuit (MMIC) module. Based on the matching theory, a 50 ⍀ microstrip feed line with open stub matched circuits is determined to possess high performance. The all extremely wideband or high gain dipole antenna array for value of standing wave ratio (VSWR) Յ 1.5 has been successfully implemented and achieved. Simulator IE3D is used to verify our analysis. Both simulated and measured data are much identical. The designed 8-element printed dipole array antenna without and with a reflector metallic ground plane achieves a gain of 8.5-9.3 dB with a 200 MHz bandwidth and a gain of 11.4 -12.3 dB with a 80 MHz bandwidth, respectively.

Broadband sectoral antenna array using printed dipole with reflector for wider beam coverage in H-plane

“…In order to achieve unidirectional coverage, the dipole antenna is backed by reflector, placed at a distance. The analysis of a wire antenna near the rectangular plate reflector is investigated in [5][6]. In this paper design of vertically polarized sectoral antenna is proposed using printed dipole antenna with reflector to achieve unidirectional coverage.…”

Design, fabrication, and test of a novel broadband dual-polarized microstrip antenna for WLAN applications

“…This arrangement allows to reduce the substrate thickness and hence decreases the surface wave losses. Therefore, the unwanted radiations are suppressed and consequently the antenna radiation performance is enhanced [4, 13–15]. Employing the parasitic patches for gap-coupling to the main radiators is a well-known approach to enhance the frequency bandwidth of the microstrip antennas.…”

Wideband omnidirectional printed dipole antenna with dumbbell‐shaped open sleeve for wireless communication applications

“…With the rapid development of modern wireless communications, antennas with wide impedance bandwidth and omnidirectional radiation patterns become a necessary component in these systems, which many buildings are installed with wireless networks consisting of numerous ceiling‐mounted, indoor base station antennas. Printed dipole antennas which have the omnidirectional pattern in the horizontal plane have become widely investigated and are attractive for their configuration advantages, such as low cost, conformity and ease of manufacture [1–4]. However, a common drawback of the printed dipole antennas is that the bandwidth of those antennas generally narrow and insufficient for many applications.…”