无线应用的紧凑型多层圆极化六角形螺旋天线

2018 IEEE Indian Conference on Antennas and Propogation (InCAP) Pub Date : 2018-12-01 DOI:10.1109/INCAP.2018.8770926

N. Rajasekhar, Reddy R. Ramana, N. Darimireddy

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引用次数: 3

摘要

提出了一种适用于无线通信的圆极化(CP)紧凑型六角螺旋(HS)天线。所提出的天线是三层同轴馈电天线，在接地层和六边形螺旋贴片天线层之间具有气隙。矩形短段用于增强天线在S11和CP辐射方面的性能。该天线的整体尺寸为$0.483\boldsymbol{\lambda}\mathbf{o}\乘以0.483\boldsymbol{\lambda}\mathbf{o}\乘以0.1\boldsymbol{\lambda}\mathbf{o}$。天线10dB RL (Return Loss)带宽为1.5 GHz (5.5 GHz ~ 7 GHz)， 3dB AR (Axial Ratio)带宽为500mhz (5.55 GHz ~ 6.05 GHz)，增益4.2 dBi。在5.8 GHz CP共振下获得的最小AR值为0.12dB，适用于IEEE 802.16d Wi-MAX和c波段卫星应用。该天线已制作完成，并在S11网络分析仪上进行了测试。

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Compact Multi-Layer Circularly Polarized Hexagonal-Spiral Antenna for Wireless Applications

Circularly Polarized (CP), Compact Hexagonal-Spiral (HS) antenna is proposed for wireless communication applications. The proposed antenna is three layered coax-fed antenna, having an air gap between ground layer and hexagonal-spiral patch antenna layer. A rectangular stub is used to enhance the performance of the antenna in terms of S11 and CP radiation. The overall size of the proposed antenna is $0.483\boldsymbol{\lambda}\mathbf{o}\times 0.483 \boldsymbol{\lambda}\mathbf{o}\times 0.1\boldsymbol{\lambda}\mathbf{o}$. The 10dB Return Loss (RL) bandwidth of the antenna is 1.5 GHz (5.5 GHz to 7 GHz) and 3dB Axial Ratio (AR) bandwidth is 500 MHz (5.55 GHz to 6.05 GHz) with a gain of 4.2 dBi. The minimum AR value obtained is 0.12dB at the CP resonance of 5.8 GHz and it is suitable for IEEE 802.16d Wi-MAX and C-band Satellite applications. The proposed antenna is fabricated and tested with Network Analyzer for S11.

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2018 IEEE Indian Conference on Antennas and Propogation (InCAP)

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