Results 211 to 220 of about 11,743,098 (262)
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A Wideband Tunable Reflection-Type Phase Shifter With Wide Relative Phase Shift
IEEE Transactions on Circuits and Systems II: Express Briefs, 2017Wide bandwidth, wide tunable phase range, and a compact circuit size are always desired for the tunable phase shifter utilized in the modern wireless communication system. However, the existing reflection-type phase shifter configurations cannot satisfy all these requirements simultaneously.
Shao Yong Zheng, Yong Mei Pan
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A scalable reflection type phase shifter with large phase variation
IEEE Microwave and Wireless Components Letters, 2005We describe a reflection type phase shifter which exhibits a large phase shift range. We characterized its response between 1.95 GHz and 2.15 GHz and achieved over 400/spl deg/ phase shift with less than 4dB insertion loss. The transition time from 0/spl deg/ to 180/spl deg/ is
D van der Weide
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MEMS variable-capacitor phase shifters part II: Reflection-type phase shifters
International Journal of RF and Microwave Computer-Aided Engineering, 2003A novel design procedure for reflection-type phase shifters using capacitive devices is developed. Using this approach, a phase shifter for operation at 26.5 GHz is developed using MEMS variable capacitors reported in Part I of this article. A design optimization procedure is discussed.
K C Gupta
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A reflection-type phase shifter controlled by a piezoelectric transducer
Microwave and Optical Technology Letters, 2011AbstractA tunable reflection‐type phase shifter, which consists of a quadrature coupler and a piezoelectric transducer (PET), is presented. The proposed phase shifter shows double phase shifts of the conventional PET‐controlled phase shifter by calculation.
Chan Ho Kim, Kai Chang
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60 GHz Reflection Type Phase Shifter based on liquid crystal
2010 IEEE Radio and Wireless Symposium (RWS), 2010 For the first time, a compact 60 GHz band phase shifter incorporating liquid crystal (LC) is presented. Based on the Reflection Type Phase Shifter (RTPS) structure, it comprises a 3-dB coupler and tunable reflective loads formed on a nematic LC substrate. The LC used to form the substrate is known as E7.
S. Bulja +5 more
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Reflection-Type Ferroelectric Phase Shifter With Defected Ground Structure
Integrated Ferroelectrics, 2004In order to obtain a low-loss ferroelectric phase shifter, we were designed and fabricated the reflection-type ferroelectric phase shifter with the defected ground structure (DGS) resonators. The ferroelectric phase shifter is consisted of a 3-dB 90° branch-line hybrid coupler and terminated reflective circuit with tunable ferroelectric DGS resonator ...
Han-Cheol Ryu +2 more
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Design of Compact Reflection-Type Phase Shifters With High Figure-of-Merit
IEEE Transactions on Microwave Theory and Techniques, 2015This paper presents reflection-type phase shifters (RTPSs) with very high figure-of-merit (FoM) and low insertion-loss variation, achieving up to 360 $^{\circ}$ relative phase shifts. Two compact topologies are proposed. They were implemented at the working frequency of 2 GHz on a printed circuit board technology.
Philippe Ferrari
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Microfluidically Reconfigurable Reflection Phase Shifter
IEEE Microwave and Wireless Components Letters, 2018 A microfluidic-based reconfiguration approach is presented for realizing a reflection phase shifter. The phase shifter consists of quadrature hybrid coupler with reflective microstrip line terminations.
Gokhan Mumcu, Abdullah Qaroot
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Experimental Study of a 28GHz Low-Loss Reflection-type Phase Shifter
2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2023Naoki Shinohara
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A Reflection Type Phase Shifter for Reconfigurable Reflectarrays at 240 GHz
2021 IEEE Radio and Wireless Symposium (RWS), 2021In this work, a high frequency reflection-type phase shifter implemented in 0.13 μm SiGe HBT technology is presented. It is based on a single-pole single-throw switch topology, utilizing HBTs in reverse-saturation. The phase shifter achieves a return loss of -2.8/-2.5 dB for a phase control of 90.4° at 240 GHz, respectively.
Kunakovskaya, Ekaterina +1 more
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