A Self-Structuring Impedance Matcher for In-Vehicle Digital Audio Broadcasting Applications

Chen, Yen‐Sheng; Liu, Po-An

doi:10.1109/tap.2017.2712179

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Fig 1 Lossy T-type Matching Network1

Design and Simulation1

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2018

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Cited by 2 publications

(3 citation statements)

References 36 publications

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“…The X 3 is calculated by (6). The X 2 is determined by covering the area of (1), which can be simplified as…”

Section: Fig 1 Lossy T-type Matching Networkmentioning

confidence: 99%

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Design strategy of tunable matching network and prototype verification

Xiong

2018

Electron. lett.

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“…The X 3 is calculated by (6). The X 2 is determined by covering the area of (1), which can be simplified as…”

Section: Fig 1 Lossy T-type Matching Networkmentioning

confidence: 99%

“…Introduction: The frequency dependency and environmental impact of antennas can be calibrated by the tunable matching network (TMN) [1]. To minimise the reflection coefficient, a set of unimodal criteria are proposed in [2], which converge to the neighbourhood of the global optimal point.…”

mentioning

confidence: 99%

Design strategy of tunable matching network and prototype verification

Xiong

2018

Electron. lett.

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“…The example prototype functions in a very‐low‐frequency (VHF) band (140–260 MHz) with a fractional bandwidth of 60%. The potential applications of this frequency band include digital audio broadcasting [22], amateur radio and software defined radio [23]. The circuitry is fabricated on a 1.6‐mm‐thick FR4 substrate (dielectric constant ɛ r = 4.4 and loss tangent tan δ = 0.02) with an area of 50 × 144 mm 2 .…”

Section: Design and Simulationmentioning

confidence: 99%

Broadband reconfigurable matching network using a non‐uniform transmission line

Chen

Liu

2018

IET Circuits, Devices & Systems

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In this study, the authors propose the use of distributed elements interconnected with switches to construct a reconfigurable matching network (RMN). Several RMNs are constructed using tunable lumped elements. However, this technique increases the system complexity because of the use of digital-to-analogue converters and synthesis algorithms. In this study, the proposed RMN employs a non-uniform transmission line with adjustable characteristic impedances, which are controlled by opening or closing the switches. While previous studies on non-uniform transmission lines have aimed to investigate the fixed configurations, this topology is designed to be an RMN that satisfies the design challenges. The maximum dimension is 0.2 times the guided wavelength of the low operational frequency, and five switches are used; however, the matchable impedances cover an extensive range of the Smith chart, and the RMN successfully tunes inherently unmatched antennas to operate at a target frequency band that depicts a fractional bandwidth of 60%. Additionally, the evaluated results depict that the fabricated RMN illustrates low insertion loss and high transducer gain and that it achieves both antennamismatch compensation and antenna-bandwidth extension.

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A Self-Structuring Impedance Matcher for In-Vehicle Digital Audio Broadcasting Applications

Cited by 2 publications

References 36 publications

Design strategy of tunable matching network and prototype verification

Design strategy of tunable matching network and prototype verification

Broadband reconfigurable matching network using a non‐uniform transmission line

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