Results 141 to 150 of about 518,836 (208)

A Low-Loss Passive D-Band Phase Shifter for Calibration-Free, Precise Phase Control

IEEE Journal of Solid-State Circuits
A low-loss passive phase shifter is presented for calibration-free, precise phase control at $D$ -band. The proposed topology manipulates time delay by controlling propagation distance in a trombone-like structure formed with two parallel transmission ...
M. Abbasi, Wooram Lee
semanticscholar   +1 more source

Quick‐response phase‐shifter using digital phase‐locked loops

Electronics and Communications in Japan (Part I: Communications), 1985
AbstractThree types of new quick‐response phase‐shifters are proposed using digital phase‐locked loops (DPLL). They use a new method of level‐slicing the sawtooth waveform of PLL's VCO. The response time for a phase shift (0° ∼ 360°) is less than one period of the input frequency, and is faster than that of conventional ones.
Tadamitsu Iritani, Hisashi Satonaka, Yohsuke Kinouchi, Tomiyuki Ushita   +3 more
openaire   +1 more source

Computer analysis of ferrite digital phase shifters

IRE International Convention Record, 1966
A simple model of waveguide remanence phase shifters consists of twin ferrite slabs symmetrically placed in rectangular waveguide and separated by a dielectric rib. The model has been analyzed with the assumption that a fundamental TE mode wave propagates in the structure. Simultaneous solution of Maxwell's equations in the three regions of dielectric,
W. Ince, E. Stern
openaire   +1 more source

Development of Power Frequency Digital Phase Shifter

2018 Conference on Precision Electromagnetic Measurements (CPEM 2018), 2018
In the measurement of high voltage loss, a voltage signal and a current signal which were nearly orthogonal to each other need to be measured accurately. If the phase of the voltage signal was shifted by 90° accurately, thus the phase angle between the voltage and the current would be nearly 0°.
Jiafu Wang, Haiming Shao, Wei Zhao, Chuansheng Li, Qing He, Xinhua Zhou, Shugen Zhou   +6 more
openaire   +1 more source

Digital phase-shifter controlled by PIN diode

ICMMT'98. 1998 International Conference on Microwave and Millimeter Wave Technology. Proceedings (Cat. No.98EX106), 2002
In some phase driven beam scan antennas, the phase-shifter is one of the most important devices. There are several methods to realize phase shifter by electronic means. One of them is the PIN diode switched digital phase-shifter. This paper analyzes the operation principle of a PIN diode controlled digital phase-shifter and gives a set of experimental ...
null Shi Xiao-Ming, null Bai Li-Dong
openaire   +1 more source

D-Band digital phase shifters for phased-array applications

2015 German Microwave Conference, 2015
This paper presents three different D-Band (110 – 170GHz) phase shifters for high-bandwidth communication and radar applications. The proposed phase shifters offer phase shifts of 180°, 90° and 45° and show only very little amplitudeand phase-error over the full D-Band.
Müller, Daniel Nehme, Diebold, Sebastian, Reiss, Sebastian, Massler, Hermann, Tessmann, Axel, Leuther, Arnulf, Zwick, Thomas, Kallfass, Ingmar   +7 more
openaire   +2 more sources

Digital clock phase shifter without a phase locked loop

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1993
A digitally controlled clock phase shifter is described that avoids the use of conventional phase locked loops (PLLs) with their attendant stability problems. The hardware is suitable for implementation as part of an integrated circuit. Two implementations are discussed, one of which has low power consumption and is suitable for clocks of moderate ...
openaire   +1 more source

A 4-bit digital MEMS phase shifter

SPIE Proceedings, 2003
ABSTRACT A 4-bit digital MEMS phase shifter, based on RF MEMS series switches and switched-line design, is presented. The phase shifter is fabricated on a 360 ­ m-thick silicon substrate, and the chip size is smaller than 5 h 8 mm 2 . The simulation performance of 16 phase states shows that at X-band the worst insertion phase deviation is 8 degree from
Jian Zhu, Bailing Zhou, Jinting Lin, Yuanwei Yu, Le Lu   +4 more
openaire   +1 more source

Digital microwave phase shifters with integrated switches

12th International Conference on Microwaves and Radar. MIKON-98. Conference Proceedings (IEEE Cat. No.98EX195), 2002
The paper presents digital microwave phase shifters with integrated switches. The design formulas and experimental results of practical circuits operating in L-band are described. These circuits can be used in many different communication systems.
openaire   +1 more source

A novel Broadband-Wide Phase Range digital phase shifter topology

2017 International Symposium on Signals, Circuits and Systems (ISSCS), 2017
In this work, a novel “Broadband-Wide Phase Range” and compact digital phase shifter topology is proposed based on the modified symmetrical lattice structures. The generic topology is suitable for MMIC implementation. The concept proof is exhibited on silicon substrate utilizing the 0.18um TSMC CMOS process.
Celal Avci, Ece Olcay Gunes, Binboga Siddik Yarman   +2 more
openaire   +1 more source