Bandstop filters

Details Bandstop filters Bandstop filters

1980-02-27

1982-02-09

Gensler, Paul L.

Wave transmission lines and networks

Negative resistance or reactance networks of the active type

Having negative impedance

328167, 333217, H03H 1104, H03H 7075

Patent

active

043152295

ABSTRACT:
A filter network that exhibits a bandstop response comprises a network of basically low pass or high pass structure. The network is developed by choosing a bandstop transfer function, a fourth-orderelliptic is disclosed, which is converted to a low pass function. This function describes a passive low pass LC ladder network including a negative impedance element. A Bruton transformation is applied to the passive LC network to give an active version including an ungrounded negative resistance network in a series arm and frequency-dependent negative resistances in shunt arms without requiring inductance coils for its implementation.

REFERENCES:
patent: 3594650 (1971-07-01), Henoch
patent: 3750037 (1973-07-01), Schmidt
patent: 3886469 (1975-05-01), Rollett et al.
patent: 4147997 (1979-04-01), Greaves
patent: 4208641 (1980-06-01), Suzuki

Affiliated with

Also associated with

Rating

Bandstop filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bandstop filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bandstop filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1262755