High temperature superconductive wideband compressive receivers

Lyons, W.G.; Arsenault, Dominic; Anderson, Allan; Sollner, T. C. L. G.; Murphy, Peter G.; Seaver, M. M.; Boisvert, R. R.; Slattery, R.L.; Ralston, R.W.

doi:10.1109/22.508231

Cited by 26 publications

(9 citation statements)

References 46 publications

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“…However, due to the rhombohedral structure of the LaAlO at room temperature and below, twin boundaries with slightly different orientations are easily formed. Consequently, there is a spatial variation of dielectric constant as large as 2% [13], [14]. These twin formations also prohibit the design and reproducibility of very precise circuits such as a multipole ultra-narrow bandpass filter.…”

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confidence: 99%

Superconducting quasi-lumped element filter on R-plane sapphire

Kwok

Zhang

Huang

et al. 1999

IEEE Trans. Microwave Theory Techn.

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Recent advancement in superconducting microwave technology has led to commercial deployment of hightemperature superconducting (HTS) subsystems for wireless communication applications. Commercialization of the HTS thin-film devices lies within, among other factors, the quality and consistency of the HTS film, as well as the overall cost and performance of the subsystem. In this paper, we present the design and performance of a quasi-lumped element filter on sapphire substrate. Centered at 1857 MHz with 0.8% fractional bandwidth, the six-pole Chebyshev filter has an insertion loss of less than 0.2 dB at 60 K, which translates into a realized unload Q of 35 000. This is an important step toward the commercialization of superconducting devices using industrial standard wafers. With the continuous improvement of the HTS film quality, YBCO film on sapphire could be an answer to the future.

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confidence: 99%

Superconducting quasi-lumped element filter on R-plane sapphire

Kwok

Zhang

Huang

et al. 1999

IEEE Trans. Microwave Theory Techn.

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“…It also has less cross talk than the microstrip line due to the existence of the top plane. An excellent example of the application of striplines can be found in the work reported by Lyons et al (1996), where the delay line was used for a chirp-response tapped filter. They used a pair of YBCO striplines to form a double spiral configuration and the chirp function was achieved by a series of λ/4 backward-wave couplers to realize the requested frequency dependent delay for different frequency components in the signal.…”

Section: Application Of Transmission Linesmentioning

confidence: 97%

Microwave filters using high-temperature superconductors

2011

High-Temperature Superconductors

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“…Several chirp filters were developed, and some compressive receivers employing such devices were reported. 8 Superconductive devices are four-port networks in which a pair of superconductive striplines separated by a variable distance are coupled by a cascade array of backward-wave couplers. In these devices, a portion of the energy propagating in the input line from the input port is transferred to a wave propagating to the other sense in the adjacent line, towards the output port.…”

Section: Introductionmentioning

confidence: 99%

Design of integrated all‐pass filters with linear group delay for analog signal processing applications

Ferreira

Avignon-Meseldzija

Ferreira

et al. 2020

Circuit Theory & Apps

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This article describes the design of integrated linear group delay filters for analog signal processing (ASP) applications and their implementation through constant-resistance lattice and bridged-T networks. Unlike previously published works, our design method uses a recursive procedure as the basis for the synthesis of a suitable transfer function. Thanks to this method, filters with a more linear group delay characteristic and flat magnitude response can be obtained.Two filters are designed in a 0.13-μm BiCMOS technology to demonstrate the method: a balanced lattice with a negative slope and an unbalanced bridged-T of positive slope. KEYWORDS all-pass filter, bridged-T network, lattice network, linear group delay, time-bandwidth product Int J Circ Theor Appl. 2020;48:658-673. wileyonlinelibrary.com/journal/cta

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High temperature superconductive wideband compressive receivers

Cited by 26 publications

References 46 publications

Superconducting quasi-lumped element filter on R-plane sapphire

Superconducting quasi-lumped element filter on R-plane sapphire

Microwave filters using high-temperature superconductors

Design of integrated all‐pass filters with linear group delay for analog signal processing applications

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