A 60 GHz Variable Gain Amplifier with a Low Phase Imbalance in 0.18 μm SiGe BiCMOS Technology

2012 ◽  
Author(s):  
Chul Woo Byeon ◽  
In Sang Song ◽  
Seong Jun Cho ◽  
Hong Yi Kim ◽  
Chaejun Lee ◽  
...  
Keyword(s):  
Variable Gain Amplifier ◽  
60 Ghz ◽  
Variable Gain ◽  
Bicmos Technology ◽  
Sige Bicmos

scholarly journals Design of a 2 GHz Linear-in-dB Variable-Gain Amplifier with 80-dB Gain Range

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Zhengyu Sun ◽  
Yuepeng Yan
Keyword(s):  
Current Gain ◽  
Variable Gain Amplifier ◽  
Current Steering ◽  
Gain Bandwidth ◽  
Broad Bandwidth ◽  
Variable Gain ◽  
Bicmos Technology ◽  
Sige Bicmos ◽  
Bicmos Process ◽  
Steering Current

A broadband linear-in-dB variable-gain amplifier (VGA) circuit is implemented in 0.18 μm SiGe BiCMOS process. The VGA comprises two cascaded variable-gain core, in which a hybrid current-steering current gain cell is inserted in the Cherry-Hooper amplifier to maintain a broad bandwidth while covering a wide gain range. Postlayout simulation results confirm that the proposed circuit achieves a 2 GHz 3-dB bandwidth with wide linear-in-dB gain tuning range from −19 dB up to 61 dB. The amplifier offers a competitive gain bandwidth product of 2805 GHz at the maximum gain for a 110-GHz ftBiCMOS technology. The amplifier core consumes 31 mW from a 3.3 V supply and occupies active area of 280 μm by 140 μm.

An E-band Variable Gain Amplifier with 24 dB-control range and 80 to 100 GHz 1 dB bandwidth in SiGe BiCMOS technology

Frequenz ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Francesco Centurelli ◽  
Pietro Monsurrò ◽  
Giuseppe Scotti ◽  
Pasquale Tommasino ◽  
Alessandro Trifiletti
Keyword(s):  
Dynamic Range ◽  
Gain Control ◽  
Variable Gain Amplifier ◽  
Control Range ◽  
Variable Gain ◽  
Bicmos Technology ◽  
Commercial Technology ◽  
Sige Bicmos ◽  
Analysis Design

Abstract Analysis, design, and characterization of an E-band Variable Gain Amplifier (VGA) in SiGe BiCMOS commercial technology is presented. VGA topologies are compared in terms of their capability to contribute to receiver linearity and dynamic range. The proposed VGA is based on a Gilbert multiplier cell exploiting current cancellation to enhance control range and linearity. A 1 dB bandwidth ranging from 80 to 100 GHz, a 24 dB gain control range and a −11.5 dBm input 1 dB compression point have been measured.

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