Results 131 to 140 of about 518,836 (208)

A Compact Ka-Band Hybrid Analog/Digital Phase Shifter With GaAs Technology

IEEE Transactions on Circuits and Systems - II - Express Briefs
This brief proposes a Ka-band hybrid analog/digital phase shifter based on $0.15~\mu \text{m}$ GaAs pHEMT technology for 5G millimeter-wave applications. The phase shifter adopts the combination design of 3-bit digital and one analog phase-shifting cells
Yi-Feng Ye, Yi-Tong Wang, Jianliang Feng, Linsheng Wu, Liang-Feng Qiu, Junfa Mao   +5 more
semanticscholar   +1 more source

Design of Miniaturized Single Bit MEMS Phase Shifter using MEMS Switches

2021 5th International Conference on Trends in Electronics and Informatics (ICOEI), 2021
This article proposes a novel miniaturization single bit MEMS phase offset (shifter) using triangular Micro-electro mechanical system (MEMS) switches. The primary goal in the design of a single-bit switched delay line digital phase offset is to reduce ...
A. G, S. M, M. Ayyadurai, S. C, G. Ramkumar   +4 more
semanticscholar   +1 more source

Sidelobe-reduction technique for phased arrays using digital phase shifters

1970 Antennas and Propagation Society International Symposium, 1970
Through the introduction of a new parameter the radiation pattern of a phased array using digital phase shifters for beam steering can be made periodic, and pattern considerations can be confined to a very narrow range of the scan angle. Arrays designed on the basis of a least mean-square pattern error are shown to require the smallest absolute values ...
N. Goto, D. Cheng
openaire   +1 more source

Digital tanlock loop without a phase shifter

2014 9th International Symposium on Communication Systems, Networks & Digital Sign (CSNDSP), 2014
This paper presents an improved digital tanlock loop architecture that has linear phase detector characteristics. These characteristics were linearized by removing the fixed time delay unit in the original time delay tanlock loop (TDTL) and using a modified DCO (digital controlled oscillator). The modified DCO incorporates lookup tables to generate two
Omar Al-Kharji Al-Ali, Nader Anani, Mahmoud Al-Qutayri, Saleh Al-Araji, P. Ponnapalli   +4 more
openaire   +1 more source

Digital quadrature phase-shifter for phase detection†

International Journal of Electronics, 1977
A digital phase shifter implemented by applications of logic exclusive-OR, J-K master-sieve flip-flop, and one-ahot monostable multivibrator gates is able to shift the phase of the reference signal from 0° to 90° continuously without dividing the input frequency by two.
openaire   +1 more source

C-Band Digitally Controlled Phase Shifter Design

2018 XIV International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2018
The paper presents simulation results of the C-band digitally controlled active vector-sum phase shifter (VSPS) which is implemented in 0.18 μm SiGe BiCMOS technology. VSPS provides digital 6-bit discrete phase control in the range from 0° to 354.5° with 5.625° step. Power consumption is below 110 mW. Post-layout simulation of VSPS shows absolute phase
Andrei S. Pomorev, Ivan F. Filippov, Valeriy V. Vertegel, Yuri B. Gimpilevich   +3 more
openaire   +1 more source

Digital PA Modulator with Phase Shifter for Phased Array Transmitters

2021 IEEE MTT-S International Microwave Symposium (IMS), 2021
This paper presents a modulator for fully digital transmitter chains which allows to realize time delays with ps accuracy between several transmitter branches, as needed for phased array antennas in beamforming networks. The proposed digital modulator absorbs all delay units of an analog signal beamforming network, thus significantly reducing form ...
Florian Huhn, Andreas Wentzel, Wolfgang Heinrich   +2 more
openaire   +1 more source

A Novel Implementation of Digital Phase Shifters

Bell System Technical Journal, 1975
A novel technique is presented for implementing a variable digital phase shifter which is capable of realizing noninteger delays. The theory behind the technique is based on the idea of first interpolating the signal to a high sampling rate, then using an integer delay, and finally decimating the signal back to the original sampling rate.
R. E. Crochiere, L R. Rabiner, R. R. Shively   +2 more
openaire   +1 more source

A 30–36 GHz Passive Hybrid Phase Shifter With a Transformer-Based High-Resolution Reflect-Type Phase Shifting Technique

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2021
This brief presents a passive hybrid phase shifter consisted of a 5-bit switch-type phase shifter (STPS) and a 4-bit high resolution reflection-type phase shifter (RTPS).
Xuguang Li, Bing Liu, Haipeng Fu, Kaixue Ma   +3 more
semanticscholar   +1 more source

An X-Band 5-Bit Active Phase Shifter Based on a Novel Vector-Sum Technique in 0.18μm SiGe BiCMOS

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2021
A 5-bit 360° active phase shifter of digital control with a novel two-step vector-sum technique in $0.18\mu \text{m}$ SiGe process is presented in this brief for X-band phased arrays.
Zhenrong Li, Jia Qiao, Y. Zhuang
semanticscholar   +1 more source