A beam-scanning architecture using A 6-GHz array of four coupled differential VCOs for automotive communications

D. Cordeau, J. Paillot
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引用次数: 1

Abstract

This paper presents the design and the implementation of a fully monolithic coupled-Voltage Controlled Oscillators (VCOs) array, operating at 6 GHz, in 0.25 μm BICMOS SiGe process. This array is made of four LC-NMOS differential VCOs coupled through a resistive network and can be used to perform beam-scanning by controlling the relative phases of the signals applied on each element of a linear antenna array. At 2.5 V power supply voltage, and a power dissipation of only 125 mW, the coupled VCO array features a simulated phase noise of -127.3 dBc/Hz at 1 MHz frequency offset from a 6 GHz carrier, giving a simulated phase progression that is continuously variable over the range -64° <; Δφ <;64° and -116° <; Δφ <; 116°. This constant phase progression is established by slightly detuning the peripheral array elements, while maintaining mutual synchronization.
一种采用4个耦合差分vco组成的6ghz阵列的波束扫描架构,用于汽车通信
本文设计并实现了一种工作频率为6 GHz、采用0.25 μm BICMOS SiGe工艺的全单片耦合电压控制振荡器(VCOs)阵列。该阵列由四个LC-NMOS差分压控振荡器组成,通过电阻网络耦合,可以通过控制施加在线性天线阵列每个元件上的信号的相对相位来执行波束扫描。在2.5 V电源电压下,耦合VCO阵列的功耗仅为125 mW,在6 GHz载波的1 MHz频偏下,模拟相位噪声为-127.3 dBc/Hz,在-64°<范围内连续变化;Δφ <;64°和-116°<;Δφ<;116°。这种恒定的相位进展是通过稍微使外围阵列元素失谐而建立的,同时保持相互同步。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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