scholarly journals RF and Microwave Band-Pass Passive Filters for Mobile Transceivers with a Focus on BAW Technology

10.5772/8764 ◽  
2010 ◽  
Author(s):  
Martha Suarez ◽  
Martine Villegas ◽  
Genevieve Baudoi
Keyword(s):  
Microwave Band ◽  
Passive Filters ◽  
Band Pass

FIRST-ORDER FILTERS GENERALIZED TO THE FRACTIONAL DOMAIN

2008 ◽  
Vol 17 (01) ◽  
pp. 55-66 ◽  
Author(s):  
A. G. RADWAN ◽  
A. M. SOLIMAN ◽  
A. S. ELWAKIL
Keyword(s):  
Fractional Order ◽  
Pass Band ◽  
Integer Order ◽  
Continuous Time Filters ◽  
Passive Filters ◽  
Low Pass ◽  
Band Pass ◽  
Half Power ◽  
The Right ◽  
High Pass

Traditional continuous-time filters are of integer order. However, using fractional calculus, filters may also be represented by the more general fractional-order differential equations in which case integer-order filters are only a tight subset of fractional-order filters. In this work, we show that low-pass, high-pass, band-pass, and all-pass filters can be realized with circuits incorporating a single fractance device. We derive expressions for the pole frequencies, the quality factor, the right-phase frequencies, and the half-power frequencies. Examples of fractional passive filters supported by numerical and PSpice simulations are given.

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