Voltage-controlled oscillator, IC chip for voltage-controlled oscillator, resistance setting apparatus, and resistance setting methodThe invention aim at improving the linearity of frequency versus control voltage characteristic and to increase the range of frequency that can be varied by a control ...
压控振荡器 (voltage-controlled oscillator, VCO) 是一种以电压输入来用来控制振荡频率的电子振荡电路设计。其振荡的频率或重复的比例会随着直流电压的不同而改变,这个特性可以用来将调变讯号当做压控振荡器的输入而产生不同的调变讯号,像是FM调变、PM调变、PWM调变。
For example, if the required inductance demands that the fabricated coils take up an area that does not leave room for the rest of the circuit then the oscillator cannot be fabricated in its entirety on a single chip. The Future of VCOs As the communications industry evolves, especially in ...
5) voltage controlled oscillator 压控振荡器 1. By using a ring voltage controlled oscillator(VCO),chip area and production cost were saved. 通过采用环行压控振荡器,节省了芯片面积和成本。 2. This paper presents the design and the experimental measurements of two CMOS LC-tuned voltage ...
of a strip line 3 and a varactor diode 5 connected to the line 3. A resonance attenuating means is set at a position distant from the tip of the line 3 by about 1/4 wavelength against a frequency double as much as an oscillation frequency. The resonance attenuating means uses a chip ...
关键词:压控振荡器 数字频率合成 FPGA Voltage Controlled LC Oscillator Abstract :The system adopting FPGA to design the VCO is based on the digital frequency synthesize technical. The digital PLL principle is used and the control of the core chip MC145152 is accomplished by FPGA. It can ...
Qorvo QPF0219 10W Transmit/Receive Modules are multi-chip Front-End Modules (FEMs) designed for 2GHz to 18GHz Wide-Band radar applications. The FEM integrates a T/R switch, a limiter, a low-noise amplifier, and a power amplifier.Click here to learn more. ...
In this paper, two fully integrated voltage-controlled oscillators (VCOs) in a 200-GHz f/sub T/ SiGe bipolar technology are presented. The oscillators use on-chip transmission lines at the output for impedance transformation. One oscillator operates up to 98 GHz and achieves a phase noise of...
A RF voltage-controlled oscillator (VCO) employs an on- chip, high-Q, three-dimensional (3-D) coil inductor and micro- machined variable capacitor for frequency tuning. Unlike con- ventional spiral inductors, the 3-D inductor minimizes t... DJ Young,V Malba,JJ Ou,... - 《International...
Qorvo QPF0219 10W Transmit/Receive Modules are multi-chip Front-End Modules (FEMs) designed for 2GHz to 18GHz Wide-Band radar applications. The FEM integrates a T/R switch, a limiter, a low-noise amplifier, and a power amplifier.Click here to learn more. ...