Results 21 to 30 of about 446,810 (257)
Reconfigurable Negative Group Delay Circuit with a Low Insertion Loss Using a Coupled Line [PDF]
Journal of Electromagnetic Engineering and Science, 2020 This paper presents a design of a transmissive-type, low insertion loss (IL) negative group delay (NGD) circuit with a reconfigurable NGD. The proposed circuit consists of a series transmission lines (TLs) and shunt short-circuited coupled lines where an
Girdhari Chaudhary, Yongchae Jeong
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Design of resonant mirrors with negative group delay
Optics Express, 2014 Resonant mirrors introduce large spectral gradients in reflected phase while maintaining high reflectivity, allowing synthesis of optimized reflected phase for many practical applications. In this paper we show theoretically that asymmetry is required for negative group delay in lossless mirrors and explore the limits of reflected phase in resonant ...
Antonio, Gellineau +2 more
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IEEE Access, 2021 This paper focuses on the time-domain analysis of bandpass (BP) negative group delay (NGD) function. The innovative NGD investigation is based on the time-domain experimentation of an innovative topology of “lill”-shape passive microstrip ...
Remy Vauche +7 more
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A Compact Dual-Band Negative Group Delay Microwave Circuit [PDF]
Radioengineering, 2018 A compact dual-band negative group delay circuit (NGDC) is proposed. The proposed NGDC is composed of an open-circuited transmission line and two resistors connected by two transmission lines.
T. Shao, S. Fang, Z. Wang, H. Liu
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Design, Modeling and Synthesis of Negative Group Delay IL-Shape Topology
IEEE Access, 2019 This paper introduces a negative group delay (NGD) theory of passive topology presenting “IL”-shape geometry. The two-port topology is comprised of a coupled line with an open- and stub-loaded terminations.
Blaise Ravelo +3 more
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International Journal of Antennas and Propagation, 2021 A band-stop filter with three different negative group delay functions in the passband, namely, band pass, high pass and low pass, is proposed, which has small insertion loss. The capacitance, inductance, and resistance meet different conditions, and the
Aixia Yuan +4 more
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All-Pass Negative Group Delay Function With Transmission Line Feedback Topology
IEEE Access, 2019 A novel circuit theory of all-pass Negative group delay (NGD) function is investigated. The NGD function is implemented with unity direct chain feedback (UDCF) system.
Blaise Ravelo, Fayu Wan, Jiao Feng
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Realization of Negative Group Delay Network Using Defected Microstrip Structure
International Journal of Antennas and Propagation, 2014 A design of negative group delay (NGD) networks using a U-shaped defected microstrip structure (DMS) and lumped elements is presented in this paper. The signal attenuation characteristics of DMS were utilized to get NGD time.
Girdhari Chaudhary +2 more
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Miniaturized Microstrip Diplexer Based on FR4 Substrate for Wireless Communications
Elektronika ir Elektrotechnika, 2021 In this paper, the miniaturized microstrip diplexer has been designed for dual channels based on FR4 substrate material. It consists of two bandpass filters (BPFs) functioning under dissimilar frequency bands coupled with a unified junction.
Hussein Ali Hussein +2 more
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Negative Group Delay Theory of a Four-Port RC-Network Feedback Operational Amplifier
IEEE Access, 2019 An innovative negative group delay (NGD) theory based on a unity direct chain feedback (UDCF) circuit topology is developed in this paper. This NGD circuit is an active cell constituted by an operational amplifier in feedback with a four-port RC-network.
Fayu Wan +6 more
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