Results 41 to 50 of about 7,286,512 (152)

X‐band 8 × 8 phased‐array 4‐channel FMCW receiver in 65 nm CMOS technology

Electronics Letters, 2022
Optimized two radar RFICs for an X‐band 8 × 8 phased‐array 4‐channel frequency‐modulated continuous‐wave receiver is proposed using 65‐nm CMOS technology and the beam steering operation of the receiver module is demonstrated.
Seon‐Ho Han, Ki‐Su Kim, Bon‐Tae Koo   +2 more
doaj   +1 more source

Near-Capacity Turbo Coded Soft-decision Aided DAPSK/Star-QAM [PDF]

, 2011
Low-complexity non-coherently detected Differential Amplitude and Phase-Shift Keying (DAPSK) schemes constitute an ideal candidate for wireless communications.
Liang, Dandan, Dandan Liang, Ng, Soon, Soon Xin Ng, Hanzo, Lajos, Lajos Hanzo   +5 more
core   +1 more source

Phase and amplitude characteristics of a phase-sensitive amplifier operating in gain saturation [PDF]

, 2012
We investigate a non-degenerate phase-sensitive amplifier (PSA) operating in gain saturation experimentally and numerically using the three-wave model.
Karlsson, Magnus, Corcoran, Bill, Lundström, Carl, Andrekson, Peter, Lundstr\uf6m, Carl Peter, Corcoran, William,, Lundström, Carl Peter,, Corcoran, William, Karlsson, Magnus,, Andrekson, Peter,   +9 more
core   +2 more sources

The Design of a 140 GHz 28 nm CMOS Vector-Sum Phase Shifter Based on Gilbert Cell and Current-Steering Amplifiers

Chips
This paper presents the design of a 140 GHz vector-sum phase shifter in a 28 nm CMOS process. Two variable-gain amplifiers—Gilbert cell and current-steering amplifiers—are investigated and compared.
Junyung Cho, Jung-Hyun Lee, M. Kim
doaj   +1 more source

A signal separation method based on the subarray beam synthesis

IET Radar, Sonar & Navigation, 2023
Large‐scale arrays are widely used due to their advantages of high gain, high resolution, and strong beam control capability. The large number of antennas leads to a sharp increase in computational complexity, and thus, it is necessary to reduce the ...
Chengzhou Liu, Jianhui Wang, Weijia Cui, Haiyun Xu, Bingqing Yang   +4 more
doaj   +1 more source

Blind Calibration for a Linear Array With Gain and Phase Error Using Independent Component Analysis

, 2014
A novel gain and phase blind calibration method for a linear array with non-Gaussian sources is proposed. In the proposed method, independent component analysis is used to estimate the product of the array error matrix and the array response matrix. From
Chun, Joohwan, Jung, Byung Wook, Yang, Hyun Jong, Kim, Jungtai   +3 more
core   +1 more source

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, 2023
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core   +1 more source

Gain and phase of segment angles relative to vibration.

, 2014
A, gain of the leg segment angle relative to vibration. B, gain of the trunk segment angle relative to vibration. C, phase of the leg segment angle relative to vibration. D, phase of the trunk segment angle relative to vibration.
Sungjae Hwang (518339), Peter Agada (518340), John J. Jeka (315518), Tim Kiemel (315517)   +3 more
core   +1 more source

Output-jitter performance of second-order digital bang-bang phase-locked loops with nonaccumulative reference clock jitter [PDF]

, 2011
Bang-bang phase-locked loops (BBPLLs) are inherently nonlinear systems due to the binary phase detector (BPD). While they are typically used for clock and data recovery, the ongoing trend toward digital loop implementations has resulted in several ...
Tertinek, Stefan, Orla Feely, Stefan Tertinek, Feely, Orla   +3 more
core   +1 more source

Phase error reduction of a digitally controlled phase shifter utilizing a variable phase and gain amplifier

, 2016
This paper presents a variable phase and gain amplifier (VPGA), featured in a 4-bit digitally controlled phase shifter, that enables significant phase error reduction.
Kayahan, Hüseyin, Caliskan, Can, Özeren, Emre, Çalışkan, Can, Kalyoncu, İlker, Gürbüz, Yaşar   +5 more
core   +1 more source