Investigation of an advanced millimeter-wave 94-GHz phased array for communications and sensing

2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON) Pub Date : 2016-05-09 DOI:10.1109/MIKON.2016.7492005

Jaeyoung Lee, C. Huynh, J. Bae, Donghyun Lee, C. Nguyen

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Abstract

A new 94-GHz 4×4 phased array frontend capable of two-dimensional scanning with orthogonal polarizations for wireless communications and sensing has been investigated. The proposed phased array frontend resolves the RF signal leakage and isolation dilemma encountered in typical systems employing a single antenna for both transmission and reception, effectively maximizing the system's dynamic range and linearity operation as well as minimizing the noise figure. Simulations at 94 GHz show high performance for the phased array frontend. In the receive (RX) mode, it has noise figure of 8.5/8.4dB at the radiating element, RMS phase error of 2.38/2.36° and gain error of 1.22/1.27dB, and total array gain of 17/22.3dB for H/V polarization, respectively, and ultra-high isolations from TX-Antenna (−200/−190dB), TX-RX (−106/−180dB) and V-H antenna ports (66/69dB). In the Transmit (TX) mode at 94 GHz, it achieves a radiated power of 7.8 dBm at the element antenna and RMS gain and phase errors of 1.28 dB and 2.19° at 94 GHz, respectively.

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用于通信和传感的先进毫米波94 ghz相控阵的研究

研究了一种新型94 ghz 4×4相控阵前端，可用于无线通信和传感的正交极化二维扫描。所提出的相控阵前端解决了采用单天线发射和接收的典型系统所遇到的射频信号泄漏和隔离难题，有效地最大化了系统的动态范围和线性运行，并最小化了噪声系数。94ghz的仿真结果表明，相控阵前端具有良好的性能。在接收(RX)模式下，辐射单元噪声系数为8.5/8.4dB，相对相位误差为2.38/2.36°，增益误差为1.22/1.27dB, H/V极化总阵列增益分别为17/22.3dB，与TX-Antenna (- 200/ - 190dB)、TX-RX (- 106/ - 180dB)和V-H天线端口(66/69dB)具有超高隔离。在94 GHz的发射(TX)模式下，元件天线处的辐射功率为7.8 dBm, 94 GHz时的均方根增益和相位误差分别为1.28 dB和2.19°。

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2016 21st International Conference on Microwave, Radar and Wireless Communications (MIKON)

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