Millimeter-Wave High-Gain SIW End-Fire Bow-tie Antenna

Abstract

Abstract-This paper presents a high gain bow-tie antenna that operates across 57 GHz-64 GHz for application in high data rate point-to-point communication systems. The proposed antenna consists of a pair of bow-tie radiators, where each radiator is etched on the opposite side of the common dielectric substrate and fed through substrate integrated waveguide (SIW) feed-line. The bow-tie radiators are arranged to cross each other symmetrically by tilting the feed-lines by 30 degrees in order to enhance the antenna gain and to obtain the required radiation pattern. The antenna is loaded with a pair of double G-shaped resonators (DGR) that are located in a region between the radiators and SIW in order to suppress the back-lobe level in the H-plane. Embedded in the E-plane of the antenna is an array of zero-index metamaterial (ZIM) unit-cells whose purpose is to effectively confine the electromagnetic waves in the end-fire direction in order to enhance its gain performance. A prototype antenna was fabricated and its performance was measured to validate the simulation results. The proposed structure exhibits a gain of 11.8-12.5 dBi over the frequency range of 57 GHz-64 GHz with reflection-coefficient less than -11 dB. In addition, the proposed antenna exhibits good cross-polarization which is less than -17 dB in both E-and H-planes at 60 GHz.IndexTerms-Millimeter-wave antenna, zero-index metamaterial, bow-tie antenna, end-fire antenna.

Wideband cavity-backed log-periodic-slot end-fire antenna with vertical polarization for conformal application

“…Although some wideband quasi‐Yagi antennas have been proposed in some literatures, most of the designs cannot maintain the stable radiation performance over their alleged frequency band. By loading metamaterial units in the front of conventional period bowtie antenna, the end‐fire radiation gain can be improved strongly . These designs, however, did not consider the influences from the ground plane when mounted on the large metallic platform.…”

One- and Two-Dimensional Beam-Switching Antenna for Millimeter-Wave MIMO Applications

“…24. Here the horn antenna is the transmitter, which propagates spherical waves towards the reflector that converts them to planar waves towards the received antenna [1].…”

“…The 60 GHz frequency band promises data rates greater than 1 Gb/s over a short distance and highly compact and miniaturized systems. Although the major issue associated with working at 60 GHz is the large path-loss attenuation encountered, this can be compensated by using high-gain antennas [1]. Since the antenna gain is inversely proportional to its beamwidth, therefore high-gain antennas are associated with narrow beamwidth.…”

Review on Millimeter Wave Antennas- Potential Candidate for 5G Enabled Applications

“…The antenna is the most crucial components of wireless systems as it intensely affects the total receiver sensitivity, thus transceiver designs and choices of digital modulation schemes and the link budget. As a result, the investigation of 60 GHz antenna technology has attracted increasing attention and remarkably, the analysis and design of those antennas is widely reported in numerous research papers [1][2][3][4][5][6][7][8].In [2], a multi-layer antenna is presented with mounted horn integrated on FR4, which can achieve a gain of 11.65 dBi. A low-loss/cost substrate integrated waveguide (SIW) feeding scheme to microstrip printed antenna (MPA) is presented in [9] for the first time with the aim of improving the radiation efficiency which was degraded due to conventional planar feeding arrangement in 60-GHz band.…”