A fourth order tunable capacitor coupled microstrip resonator band pass filter

Hao, Shilei; Gu, Qun Jane

doi:10.1109/rws.2015.7129763

Cited by 10 publications

(5 citation statements)

References 3 publications

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“…The Atmega328P has a pinout diagram. It has digital input output pin, AD converter channels, I2C communication module, timing modules, PWM Channels [10]. As shown in figure 3.…”

Section: The Chosen Of Microcontroller and Codingmentioning

confidence: 99%

Assistive technology implementation with brain-machine interface

Wang

2023

TNS

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As the development of the Brain Computer Interface, it can be a possible way for human to control the external devices by the mind. This can be good news for the handicapped people whose life qualities are greatly decreased. In this paper, designed an assistive robot arm for those disabled. The assistive robot arm mainly contains a filter, a microcontroller and a motor drive system. The filter can filter out the noises while the microcontroller judging the brain signals and turn it into an actual control signal. The actual control signal will finally drive the motor and for the sake of safety and stability, a PID circuit was add in the motor drive system. The mechanic arm designed can turn what people think to the actual robot behaviour and this will obviously increase the life quality of the disabled people. Its also a light weight system with a wide range of versatility and will bring benefits to all the handicapped.

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“…The Atmega328P has a pinout diagram. It has digital input output pin, AD converter channels, I2C communication module, timing modules, PWM Channels [10]. As shown in figure 3.…”

Section: The Chosen Of Microcontroller and Codingmentioning

confidence: 99%

Assistive technology implementation with brain-machine interface

Wang

2023

TNS

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“…Design. The 2nd-order active BPF is designed based on the classic Chebyshev BPF structure [19][20][21]. The Chebyshev BPF has inferior selectivity due to the poor stopband rejection level.…”

Section: Chebyshev Bpf Using Active Capacitor and Inductormentioning

confidence: 99%

“…In the active capacitor column, neg equ and equ are the BPF design values. Applying the equ and equ values, the theoretical center frequency 0 is then calculated from (21). The BPF column presents quality factor, pass band gain, and bandwidth.…”

Section: Chebyshev Bpf Using Active Capacitor and Inductormentioning

confidence: 99%

Chebyshev Bandpass Filter Using Resonator of Tunable Active Capacitor and Inductor

Wang

Chen

2017

VLSI Design

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A classic second-order coupled-capacitor Chebyshev bandpass filter using resonator of tunable active capacitor and inductor is presented. The low cost and small size of CMOS active components make the bandpass filter (BPF) attractive in fully integrated CMOS applications. The tunable active capacitor is designed to compensate active inductor's resistance for resistive match in the resonator. In many design cases, more than 95% resistive loss is cancelled. Meanwhile, adjusting design parameter of the active component provides BPF tunability in center frequency, pass band, and pass band gain. Designed in 1.8 V 180 nanometer CMOS process, the BPF has a tuning frequency range of 758-864 MHz, a controllable pass band of 7.1-65.9 MHz, a quality factor of 12-107, a pass band gain of 6.5-18.1 dB, and a stopband rejection of 38-50 dB.

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“…A band-pass filter contains a number of coupled resonators, and the dimensions of the distributed elements and the number of resonators proposed defines the filter characteristics. Consequently, most microstrip filter miniaturization techniques seek to minimize one or other of these quantities [23][24][25][26][27][28][29][30][31]. A variety of structures and methods have been proposed for microstrip tunable filters such as combline, hairpin, parallel-coupled line, step impedance, and stub impedance [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]."…”

Section: Introductionmentioning

confidence: 99%

Trisection Open-Loop Varacter-Based Tunable Filter for 5G Wireless Communications

Al‐Yasir¹

2020

Proceedings of the Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart

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In this manuscript, a very compact planar reconfigurable bandpass filter (BPF) operating from 3.4 to 3.8 GHz spectrum bandwidth for fifth-generation 5G wireless communications is proposed. The microstrip band-pass filter (BPF) employes three-ring resonators with 50 Ω transmission line impedances for input and output ports. The mutual coupling coefficients are controlled to achieve the required frequency response with three poles bandpass Butterworth properties. Varactor switch and biasing circuits are modeled to control the centre frequency in the required bands. The presented tunable filter is designed on Rogers RO3010 dielectric material with a relative permittivity of 10.2 and a very small size of 17×5×1.27 mm 3. The introduced reconfigurable BPF is designed and optimized using CST tool.

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A fourth order tunable capacitor coupled microstrip resonator band pass filter

Cited by 10 publications

References 3 publications

Assistive technology implementation with brain-machine interface

Assistive technology implementation with brain-machine interface

Chebyshev Bandpass Filter Using Resonator of Tunable Active Capacitor and Inductor

Trisection Open-Loop Varacter-Based Tunable Filter for 5G Wireless Communications

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