نتایج جستجو برای: circuit tuning

تعداد نتایج: 163780  

2016
Hassan Aldeeb Thottam S. Kalkur

A novel approach to design Tunable Dual-Band Band-Stop filters will be presented in this paper. These filters have a new configuration with a coplanar microstrip line loaded with SteppedImpedance Resonators (SIRs). These can be tuned by using tuning elements such as a tuning diode and ferroelectric capacitor. The Dual-Band Band-Stop Filter (DBBSF) and Dual-Band Band-Pass Filter (DBBPF) have bec...

2006
Onur Esame Ibrahim Tekin Yasar Gurbuz

In this paper, design and realization of a 4.5-5.8 GHz, –Gm LC voltage controlled oscillator (VCO) for IEEE 802.11a standard is presented. The circuit is implemented with 0.35μm SiGe BiCMOS process that includes high-speed SiGe Heterojunction Bipolar Transistors (HBTs). A linear, 1300 MHz tuning range is measured with accumulation-mode varactors. Fundamental frequency output power changes betwe...

2015
Saeed Ghamari Gabriele Tasselli Cyril Botteron Pierre-André Farine

A 4 th order Gm-C elliptic low-pass filter with a wide continuous tuning range is presented. The continuous tuning is achieved by means of a new tuning circuit which adjusts the bias current of the Gm cell’s input stage to control the cut-off frequency. With this tuning circuit, power efficiency is achieved by scaling down the power consumption proportionally to the cut-off frequency while keep...

2010
Chunbo Lou Xili Liu Ming Ni Yiqi Huang Qiushi Huang Longwen Huang Lingli Jiang Dan Lu Mingcong Wang Chang Liu Daizhuo Chen Chongyi Chen Xiaoyue Chen Le Yang Haisu Ma Jianguo Chen Qi Ouyang

Design and synthesis of basic functional circuits are the fundamental tasks of synthetic biologists. Before it is possible to engineer higher-order genetic networks that can perform complex functions, a toolkit of basic devices must be developed. Among those devices, sequential logic circuits are expected to be the foundation of the genetic information-processing systems. In this study, we repo...

Journal: :IEEE Transactions on Microwave Theory and Techniques 1998

Journal: :Journal of the Korea Academia-Industrial cooperation Society 2008

2010
Ching-Che Chung Chiun-Yao Ko Sung-En Shen

This paper presents a self-calibration circuit to correct the non-monotonic response in the cascading digitally controlled oscillator (DCO). The proposed calibration circuit can solve the non-monotonic problem when the coarse-tuning control code is changed. The proposed DCO implemented with a standard performance 65nm CMOS process can output frequency ranges from 58.7 MHz to 481.6 MHz. And the ...

Journal: :IEICE Electronic Express 2004
Ahmed El Oualkadi Jean-Marie Paillot Hervé Guegnaud Rachid Allam Lucian Dascalescu

This paper describes a new association of a high-Q pseudo 8-path switched-capacitor (S-C) bandpass filter and its command circuit made up by a ring VCO with ‘XOR’ gates. The proposed circuit presents the possibility of tuning over a radio-frequency (RF) broadband allowing to sweep different channels with a high quality factor. Designed with CMOS process (0.35μm, for instance), this circuit is i...

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