A low-power two-stage harmonic rejection quadrature mixer employing bias-current reuse

2015 ◽  
Author(s):  
Wei-Gi Ho ◽  
Travis Forbes ◽  
Ranjit Gharpurey
Keyword(s):  
Low Power ◽  
Bias Current ◽  
Two Stage ◽  
Current Reuse ◽  
Harmonic Rejection

Review on 60GHz Low Noise Amplifier for Low Power and Linearity

2017 ◽  
pp. 283-315
Author(s):  
Siva Sankar Yellampalli ◽  
Rashmi S. B.
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
Radio Spectrum ◽  
Low Noise ◽  
Bias Current ◽  
60 Ghz ◽  
Current Reuse ◽  
Extremely High Frequency ◽  
Noise Amplifier ◽  
Circuit Components

In the extremely high frequency radio spectrum of 30-300 GHz, the band from 57-64 GHz has been de-regulated. The biggest challenge in designing products at this frequency is the design of CMOS based transceiver circuit components. This chapter deals with the review of 60 GHz LNA design. LNA was chosen as this is the first component of the receiver circuit and its performance affects the transceiver efficiency. In this chapter the review is done on 60GHz LNA's design addressing the linearization, and low power challenges. To address these challenges, in literature there are many LNA architectures such as simple cascode topology, Current reuse topology etc. The major advantage of current reuse topology is its load transistor shares the same bias current of driver which results in reduced power dissipation by maintaining the maximum gain. The main objective of this chapter is to address gain, power dissipation and linearization challenges by reviewing the different current reuse architectures and linearization techniques used to implement 60GHz LNA.

scholarly journals An Ultra-Low-Power K-Band 22.2 GHz-to-26.9 GHz Current-Reuse VCO Using Dynamic Back-Gate-Biasing Technique

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 889
Author(s):  
Xiaoying Deng ◽  
Peiqi Tan
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Tuning Range ◽  
Frequency Tuning ◽  
Cmos Process ◽  
Voltage Controlled Oscillator ◽  
Back Gate ◽  
Ultra Low Power ◽  
Current Reuse ◽  
K Band

An ultra-low-power K-band LC-VCO (voltage-controlled oscillator) with a wide tuning range is proposed in this paper. Based on the current-reuse topology, a dynamic back-gate-biasing technique is utilized to reduce power consumption and increase tuning range. With this technique, small dimension cross-coupled pairs are allowed, reducing parasitic capacitors and power consumption. Implemented in SMIC 55 nm 1P7M CMOS process, the proposed VCO achieves a frequency tuning range of 19.1% from 22.2 GHz to 26.9 GHz, consuming only 1.9 mW–2.1 mW from 1.2 V supply and occupying a core area of 0.043 mm2. The phase noise ranges from −107.1 dBC/HZ to −101.9 dBc/Hz at 1 MHz offset over the whole tuning range, while the total harmonic distortion (THD) and output power achieve −40.6 dB and −2.9 dBm, respectively.

A Very Low Power Quadrature VCO with Modified Current-Reuse and Back-Gate Coupling Topology

2017 ◽  
Vol 26 (11) ◽  
pp. 1750184 ◽  
Author(s):  
Qiuzhen Wan ◽  
Jun Dong ◽  
Hui Zhou ◽  
Fei Yu
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Phase Noise ◽  
Tuning Range ◽  
Supply Voltage ◽  
Voltage Controlled Oscillator ◽  
Back Gate ◽  
Current Reuse ◽  
Quadrature Vco ◽  
In Series

In this paper, a very low power modified current-reused quadrature voltage-controlled oscillator (QVCO) is proposed with the back-gate coupling technique for the quadrature signal generation. By stacking switching transistors in series like a cascode, the modified current-reused QVCO can be constructed in a totem-pole manner to reuse the dc biasing current and lower the power consumption. By utilizing the back-gates of switching transistors as coupling terminals to achieve the quadrature outputs, the back-gate coupled QVCO improves the phase noise and reduces the power consumption compared to the conventional coupling transistor based topology. Together with the modified current-reuse and back-gate coupling techniques, the proposed QVCO can operate at reduced supply voltage and power consumption while maintaining remarkable circuit performance in terms of low phase noise and wide tuning range. With a dc power of 1.6[Formula: see text]mW under a 0.8[Formula: see text]V supply voltage, the simulation results show the tuning range of the QVCO is from 2.36 to 3.04[Formula: see text]GHz as the tuning voltage is varied from 0.8 to 0.0[Formula: see text]V. The phase noise is [Formula: see text]118.3[Formula: see text]dBc/Hz at 1[Formula: see text]MHz offset frequency from the carrier frequency of 2.36[Formula: see text]GHz and the corresponding figure-of-merit of the QVCO is [Formula: see text]183.7[Formula: see text]dBc/Hz.

Reconfigurable low voltage low power dual-band self-cascode current-reuse quasi-differential LNA for 5G

2019 ◽  
Vol 92 ◽  
pp. 104602 ◽  
Author(s):  
K. Hari Kishore ◽  
V. Senthil Rajan ◽  
R. Sanjay ◽  
B. Venkataramani
Keyword(s):  
Low Power ◽  
Low Voltage ◽  
Dual Band ◽  
Current Reuse ◽  
Self Cascode

scholarly journals Highly Sensitive Diode-Based Micro-Pirani Vacuum Sensor with Low Power Consumption

Sensors ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 188 ◽  
Author(s):  
Debo Wei ◽  
Jianyu Fu ◽  
Ruiwen Liu ◽  
Ying Hou ◽  
Chao Liu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Forward Bias ◽  
High Sensitivity ◽  
Bias Current ◽  
Low Power Consumption ◽  
Sensor Performance ◽  
Sensor Structure ◽  
Vacuum Sensor ◽  
The One

Micro-Pirani vacuum sensors usually operate at hundreds of microwatts, which limits their application in battery-powered sensor systems. This paper reports a diode-based, low power consumption micro-Pirani vacuum sensor that has high sensitivity. Optimizations to the micro-Pirani vacuum sensor were made regarding two aspects. On the one hand, a greater temperature coefficient was obtained without increasing power consumption by taking advantage of series diodes; on the other hand, the sensor structure and geometries were redesigned to enlarge temperature variation. After that, the sensor was fabricated and tested. Test results indicated that the dynamic vacuum pressure range of the sensor was from 10−1 to 104 Pa when the forward bias current was as low as 10 μA with a power consumption of 50 μW. Average sensitivity was up to 90 μV/Pa and the sensitivity of unit power consumption increased to 1.8 V/W/Pa. In addition, the sensor could also work at a greater forward bias current for better sensor performance.

scholarly journals A wideband current-reuse-RGC TIA circuit with low-power consumption

2019 ◽  
Vol 16 (22) ◽  
pp. 20190615-20190615
Author(s):  
Akira Hida ◽  
Yusuke Nakane ◽  
Shunta Mizuno ◽  
Makoto Nakamura ◽  
Daisuke Ito ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Low Power Consumption ◽  
Current Reuse
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