Variable 360° Vector-Sum Phase Shifter With Coarse and Fine Vector Scaling
نویسندگان
چکیده
منابع مشابه
Multichannel vector sum phase shifter.
A novel multichannel vector sum phase shifter that is suitable for phased array antenna applications is demonstrated. Each channel is implemented using a distinct optical wavelength. Selective control of each channel is performed using an acousto-optic polarization coupler. The concept is successfully demonstrated for two individually controlled channels. For each channel, a continuously variab...
متن کاملFull 360circ Vector-Sum Phase-Shifter for Microwave System Applications
An innovative vector-sum phase shifter with a full 360◦ variable phase-shift range is proposed and experimentally demonstrated in this paper. It employs an active balun and a very high-speed CMOS operational transconductance amplifier (OTA) integrator to generate the four quadrature basis vector signals. The fabricated chip operates in the 2–3 GHz, it exhibits an average insertion gain of 1.5 d...
متن کاملA Novel Photonic Vector-Sum Phase Shifter Using Polarization Maintaining Fibers
We propose and demonstrate a novel photonic phase shifter based on vector summation technique using polarization maintaining fibers (PMF). The phase change is achieved by controlling the modulator bias point and the polarization state of the signal injected into PMF. By controlling PMF length, 2π phase change is possible at microwave and millimeter wave frequencies.
متن کاملA Wideband 360° Analog Phase Shifter Design
This paper proposes a reflection-type wideband 360 ° analogue phase shifter. The phase shifter employs a branchline coupler circuit to achieve a wideband operation and a varactor-diode circuit to achieve a wide phase-shift range. Analytical formulas are derived to optimize the parameters in the coupler circuit for wideband operation and reduced attenuation ripple, and in the varactor circuit to...
متن کاملSupport vector regression with random output variable and probabilistic constraints
Support Vector Regression (SVR) solves regression problems based on the concept of Support Vector Machine (SVM). In this paper, a new model of SVR with probabilistic constraints is proposed that any of output data and bias are considered the random variables with uniform probability functions. Using the new proposed method, the optimal hyperplane regression can be obtained by solving a quadrati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Microwave Theory and Techniques
سال: 2016
ISSN: 0018-9480,1557-9670
DOI: 10.1109/tmtt.2016.2574843