Results 181 to 190 of about 615 (197)
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A Balanced Wideband Filtering Phase Shifter With High Frequency Selectivity
International Journal of Circuit Theory and ApplicationsABSTRACT A balanced wideband filtering phase shifter is achieved by utilizing a cascaded structure composed of two half‐wavelength transmission lines, two T‐type short‐circuited stub‐loaded transmission lines, and a ring structure constructed by a capacitor and a terminal short‐circuited coupled line.
Gangxiong Wu, Jin Shi, Kai Xu
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An inductorless electrical-balance 360° phase shifter for 0.5–1.15GHz in 0.18μm CMOS
2015 10th European Microwave Integrated Circuits Conference (EuMIC), 2015This paper presents an integrated phase shifter based on electrical-balance operation. The phase shift of the circuit is set through the difference in impedance between two on-chip tunable impedances. Each impedance consists of a parallel combination of a tunable resistor and a tunable capacitor.
Van Liempd, Barend +2 more
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Magnetic balanced phase shifter for polyphase supply
IEEE Transactions on Magnetics, 1974A novel method of balanced firing of thyristors used for polyphase supply is presented. The phase angles of the polyphase voltages are shifted simultaneously by controlling a phase shifter of a single phase. A simple feedback circuit including a saturable core and an integrator plays a key role in this balanced phase shifter.
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Balanced Wideband Phase Shifters With Wide Phase Shift Range and Good Common-Mode Suppression
IEEE Transactions on Microwave Theory and Techniques, 2019This paper proposes a class of balanced wideband phase shifters with wide phase shift range and good common-mode (CM) suppression. Both the balanced filtering units in the reference and main branches consist of horizontal half-wavelength branches and vertical quarter-wavelength loaded stubs but with dissimilar sizes.
Lei-Lei Qiu, Lei Zhu, Yun-Peng Lyu
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Balanced Wideband Phase Shifters With Good Filtering Property and Common-Mode Suppression
IEEE Transactions on Microwave Theory and Techniques, 2019In this paper, a class of balanced wideband phase shifters with good filtering property and common-mode (CM) suppression is proposed, synthetically designed, and implemented. Unlike the conventional coupled-line reference branch one, the proposed balanced phase shifter has its T-shaped structure in both of main and reference branches, so as to achieve ...
Lei-Lei Qiu, Lei Zhu
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A Balanced Filtering Phase Shifter with Wide Operating Bandwidth
2024 Photonics & Electromagnetics Research Symposium (PIERS)Jin Shi
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Balanced detection for spectral-domain optical coherence tomography with fiber-based phase shifter
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVIII, 2018We present a balanced detection method for spectral domain optical coherence tomography (SD-OCT) using a fiberoptic phase shifter. SD-OCT systems typically use a single line scan camera to detect the spectrogram, and noninterfered signals are not excluded from the recorded signal. That limits dynamic range and reduces image quality.
Eun Seo Choi
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2019 IEEE Asia-Pacific Microwave Conference (APMC), 2019
This paper proposes the generalized topology and synthesis design method for the wideband balanced phase shifters with common-mode (CM) suppression. By utilizing of the open-and short-circuited stub-loaded T-shaped structure, high CM rejection and good differential-mode (DM) filtering property can be simultaneously achieved.
Lei-Lei Qiu, Lei Zhu, Yun-Peng Lyu
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This paper proposes the generalized topology and synthesis design method for the wideband balanced phase shifters with common-mode (CM) suppression. By utilizing of the open-and short-circuited stub-loaded T-shaped structure, high CM rejection and good differential-mode (DM) filtering property can be simultaneously achieved.
Lei-Lei Qiu, Lei Zhu, Yun-Peng Lyu
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Optik, 2019
Abstract We propose a phase noise suppression scheme for RF signal remote fiber transmission based on a photonic phase shifter. Phase noise induced by the temperature variation and mechanical perturbation is suppressed automatically and effectively through a feedback network.
Wensheng Zhai +4 more
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Abstract We propose a phase noise suppression scheme for RF signal remote fiber transmission based on a photonic phase shifter. Phase noise induced by the temperature variation and mechanical perturbation is suppressed automatically and effectively through a feedback network.
Wensheng Zhai +4 more
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IEEE Transactions on Antennas and Propagation, 2005
We propose an S-band active phased array antenna (APAA) with analog phase shifters (PSs) that use double-balanced mixers (DBMs). The quadrature phase shift keying modulator integrated circuits (ICs) used as the phase shifters can control both the amplitude and phase of the input signal continuously and independently by using the control voltages.
A. Miura +6 more
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We propose an S-band active phased array antenna (APAA) with analog phase shifters (PSs) that use double-balanced mixers (DBMs). The quadrature phase shift keying modulator integrated circuits (ICs) used as the phase shifters can control both the amplitude and phase of the input signal continuously and independently by using the control voltages.
A. Miura +6 more
openaire +1 more source