MMIC 14-GHz VCO and Miller Frequency Divider for Low-Noise Local Oscillators
MMIC 14-GHz VCO and Miller Frequency Divider for Low-Noise Local Oscillators
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用于低噪声本地振荡器的 MMIC 14GHz VCO 和米勒分频器
DOI：
10.1109/tmtt.1987.1133725
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发表时间：
1987
影响因子：
4.3
通讯作者：
H. Kato
中科院分区：
文献类型：
--
作者：
T. Ohira;T. Hiraoka;H. Kato
研制了MMIC压控振荡器和MMIC分频器，并应用于14 GHz低噪声本机振荡器。压控振荡器采用源极跟随器FET电路，以获得较宽的调谐范围和较低的拉伸值。将宽带平衡混频器和滤波放大器集成在一块芯片中，构成密勒分频器。-MMIC被组装成14 GHz锁相环，以证明它们将作为低噪声振荡器的关键部件运行。实验表明，即使在低Q值的MMIC电路中，振荡器的载波噪声也能得到足够的降低，可用于Ku波段卫星通信系统中的星载外差接收机、发射机和无线电中继器等。因此，单片微波低噪声振荡器的发展前景是光明的。
An MMIC voltage-controlled oscillator and an MMIC frequency divider are developed and applied to a 14-GHz low-noise local oscillator. To obtain both wide tuning range and low pulling figure, the source-follower FET circuit is used in the voltage-controlled oscillator. A wide-band balanced mixer and a filtering amplifier are integrated in a single chip and constitute the Miller frequency divider. -The MMIC's were assembled into a 14-GHz phase-locked loop in order to demonstrate that they will operate as key components of low-noise oscillators. It is shown experimentally that even for low-Q MMIC circuitry, the carrier noise of the oscillator is reduced enough for practical purposes such as space-borne heterodyne receivers, transmitters, and radio repeaters in Ku-band satellite communication systems. Thus, prospects are bright for development of single-chip microwave low-noise oscillators.