Design and Implementation of a Single Clock Dual-Band Switched-Capacitor Filter

2014 ◽  
Vol 705 ◽  
pp. 195-198
Author(s):  
Ying Liu ◽  
Jiang Hua Song ◽  
Jia Ning Cui ◽  
Ying Wang ◽  
Tie Liu Wang
Keyword(s):  
Frequency Characteristic ◽  
Dual Band ◽  
Switched Capacitor ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Amplitude Frequency Characteristic ◽  
Design And Implementation ◽  
Band Pass ◽  
Switched Capacitor Filters ◽  
Selection Of

This paper introduces two bands switched capacitor filters which are realized by using a single clock. The chip is LTC1068 that contains four 2 order band-pass filter. By reasonable selection of working mode and clever collocation of resistances to realize two 4 order band-pass filter which used in acoustic receiving amplifier circuit. Amplitude-frequency characteristic curves are tested in paper by frequency sweeper.

A NEW SWITCHED OPAMP APPROACH FOR IMPROVING THE OPERATION OF AUTO-RESET SWITCHED-CAPACITOR FILTERS

2011 ◽  
Vol 20 (05) ◽  
pp. 835-848 ◽  
Author(s):  
MOHAMMAD RASHTIAN ◽  
OMID HASHEMIPOUR ◽  
KEIVAN NAVI ◽  
ALI JALALI
Keyword(s):  
Power Consumption ◽  
Quality Factor ◽  
Second Order ◽  
Considerable Reduction ◽  
Center Frequency ◽  
Switched Capacitor ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Pass ◽  
Switched Capacitor Filters

In this paper, a new switched opamp is presented in order to improve the operation of auto-zeroed switched capacitor circuit. This approach results in a considerable reduction in power consumption and a moderate speed improvement. Based on the above improvement, a second-order band-pass filter with a center frequency of 833 kHz and quality factor of 8 is realized and compared with previous works. The proposed switched opamp is also utilized in the structure of a novel z to -z2 block for the design of pseudo two-path band-pass filters. A second-order pseudo two-path band-pass filter with the same specification of the previous work is designed, simulated, and compared.

scholarly journals W‐band dual‐band waveguide band‐pass filter using dual‐mode cavities

2018 ◽  
Vol 54 (25) ◽  
pp. 1444-1446
Author(s):  
Jianfei Chen ◽  
Sheng Zhang ◽  
Chao Zhang ◽  
Yuehua Li
Keyword(s):  
Dual Band ◽  
Band Pass Filter ◽  
Dual Mode ◽  
Pass Filter ◽  
W Band ◽  
Band Pass

scholarly journals Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands

2019 ◽  
Vol 4 (7) ◽  
pp. 28-30
Author(s):  
William Johnson ◽  
Cavin Roger Nunes ◽  
Savio Sebastian Dias ◽  
Siddhi Suresh Parab ◽  
Varsha Shantaram Hatkar
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Dual Band ◽  
Band Pass Filter ◽  
Coupled Resonators ◽  
Microstrip Filter ◽  
Resonant Frequencies ◽  
Pass Filter ◽  
Band Pass ◽  
Low Insertion Loss

In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.

scholarly journals Study of Microstrip Dual-Band Band Pass Filter

2021 ◽  
Author(s):  
Anciline V ◽  
Maheswari S
Keyword(s):  
Wireless Communication ◽  
Insertion Loss ◽  
Communication System ◽  
Dual Band ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Wireless Communication System ◽  
Band Pass ◽  
Main Component

The main component widely used in wireless communication system is dual-band band pass filter. This band pass filter is intended in many ways and some are microstrip, waveguide, etc. The dual-band will works in two different frequency ranges which will provide a huge application. This paper compares different microstrip dual-band band pass filter based on the techniques, insertion loss, frequency, etc.

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