Improving Power-Handling Capability of 4-Pole HTS Filters by Expanding Line Width of Resonator 2 With Narrow Slits

Tanaka, Yuji; Akiya, Masahiro; Ishii, H.; Saito, Atsushi; Ohshima, Shigetoshi

doi:10.1109/tasc.2012.2234189

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…Power handling capacity of an HTS filter is determined by the critical current of the resonators, which is limited by the current concentration at the edge of the microstrip line [71]. Therefore, various designs have been proposed with modified resonator layout to increase the critical current limit, such as disk resonators [72]- [74] and sliced microstrip lines [17], [75], [76]. Specifically, a 10-pole S-band HTS filter based on special straight-line half-wavelength resonators was reported in [77], showing an out-of-band rejection better than 80 dB and an in-band (2.11-2.19 GHz) power handling capability of 35.8 dBm (3.8W) at 60 K, as shown in Fig.…”

Section: B High Power Handling Hts Filtersmentioning

confidence: 99%

High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview

Zhang

Guo

2022

IEEE J. Microw.

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High temperature (high-Tc) superconductors (HTS) have found many applications in the last two decades. To microwave researchers and engineers, the ultra-low surface resistance of the thin-film HTS materials at microwave and millimeter frequencies and the highly non-linear Josephson junctions are of particular interest. The former can be exploited in the design and fabrication of passive microwave components and circuits with superior performance, and the latter can be exploited to create many novel active HTS devices. This paper provides an overview of the state-of-art development of HTS devices and circuits for microwave and mm-wave communication front-end receiver systems. The paper is particularly focused on the latest advancement of HTS Josephson junction based active devices, monolithic microwave integrated circuits (MMIC), and whole receiver systems integrated with cryocoolers.INDEX TERMS Filters, high temperature superconductors (HTS), Josephson junction, mixers, receivers.

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Section: B High Power Handling Hts Filtersmentioning

confidence: 99%

High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview

Zhang

Guo

2022

IEEE J. Microw.

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“…In recent years, many works have concentrated on improving the power handling capabilities of HTS filters by using various types of resonators, such as bulk resonators [26][27][28], dual-mode resonators [29][30][31], strip line resonators [32][33][34][35][36], and microstrip line resonators [37][38][39][40][41][42][43][44], and impressive progress has been made. Generally, the critical current of the HTS bulk resonators and strip line resonators can be significantly larger than that of the microstrip resonators.…”

Section: Development Trend In Recent Yearsmentioning

confidence: 99%

Progress on applications of high temperature superconducting microwave filters

Li¹,

Xu²,

Wang³

et al. 2017

Supercond. Sci. Technol.

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In the past two decades, various kinds of high performance high temperature superconducting (HTS) filters have been constructed and the HTS filters and their front-end subsystems have been successfully applied in many fields. The HTS filters with small insertion loss, narrow bandwidth, flat in-band group delay, deep out-of-band rejection, and steep skirt slope are reviewed. Novel HTS filter design technologies, including those in high power handling filters, multiband filters and frequency tunable filters, are reviewed, as well as the all-HTS integrated front-end receivers. The successful applications to various civilian fields, such as mobile communication, radar, deep space detection, and satellite technology, are also reviewed.

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“…Many researchers have increased the power-handling capability of superconducting band-pass filters (BPFs) by improving the filter structure. Such improvements have been reported for sliced microstrip Manuscript line resonators [3], [4], for microstrip-disk resonators [5]- [8], and for HTS thick film resonators [9]- [11]. Bulk superconducting GdBa 2 Cu 3 O y (GdBCO) fabricated by using a modified quench and melt growth (QMG) method [12] have a surface resistance (R s ), that is low enough to be used in microwave filters [13].…”

Section: Introductionmentioning

confidence: 99%

Power-Handling Capability of Superconducting Filters Using Disk- and Ring-Type Bulk Resonators

Kato

Saito

Tsurui

et al. 2015

IEEE Trans. Appl. Supercond.

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The critical current of a bulk resonator is larger than that of a thin film resonator. Therefore, we investigated a transmitting filter that uses high temperature bulk superconducting resonators to increase their power-handling capability. We designed disk-and ring-type 3-pole bulk superconducting resonator filters using MW-studio software and calculated the current density distribution. From the simulation, the power-handling capability of the disk-type bulk filter was found to be approximately 1.3 times that of the ring-type bulk filter. These filters were fabricated and tested. The frequency response and the power-handling capability were measured at 20 K. The filters showed band-pass properties. The power-handling capability of the disk-type bulk filter was 41.7 W and that of the ring-type bulk filter was 26.6 W. Therefore, the disk-type filter had an approximately 1.6 times higher power-handling capability than did the ring-type filter.

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Improving Power-Handling Capability of 4-Pole HTS Filters by Expanding Line Width of Resonator 2 With Narrow Slits

Cited by 5 publications

References 19 publications

High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview

High-Tc Superconducting Microwave and Millimeter Devices and Circuits—An Overview

Progress on applications of high temperature superconducting microwave filters

Power-Handling Capability of Superconducting Filters Using Disk- and Ring-Type Bulk Resonators

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