US 2003/0224746 A1 · Unconditionally stable on-chip filter and applications thereof

Abstract

An unconditionally stable on-chip filter includes a filtering section and at least one negative resistance module. The filtering section is operably coupled to filter a signal and includes realizable integrated circuit passive components. The at least one negative resistance module is operably coupled to compensate for integrated circuit losses of the filtering section. The realizable integrated circuit passive components have values that are robust, in comparison to parasitic values, have minimal integrated circuit real estate, and provide realizable values for various integrated circuit manufacturing processes including CMOS technology.

Claims43

Dependent claims

An unconditionally stable filter comprises:

filtering section operably coupled to filter a signal, wherein the filtering section includes realizable integrated circuit passive components;
and
at least one negative resistance module operably coupled to compensate for integrated circuit losses of the filtering section.

An integrated circuit (IC) radio receiver comprises:

a low noise amplifier;
a bandpass filter that includes:
a bandpass filtering section operably coupled to filter a signal, wherein the bandpass filtering section includes realizable integrated circuit passive components;
and
at least one negative resistance module operably coupled to compensate for integrated circuit losses of the bandpass filtering section;
and
down-conversion module, wherein the low noise amplifier, the bandpass filter, and the down-conversion module are operably coupled to convert a received radio frequency (RF) signal into a low intermediate frequency (IF) signal.

4 more elements

An integrated circuit (IC) radio transmitter comprises:

power amplifier;
a bandpass filter that includes:
a bandpass filtering section operably coupled to filter a signal, wherein the bandpass filtering section includes realizable integrated circuit passive components;
and
at least one negative resistance module operably coupled to compensate for integrated circuit losses of the bandpass filtering section;
and
up-conversion module, wherein the power amplifier, the bandpass filter, and the up-conversion module are operably coupled to convert a received low intermediate frequency (IF) signal into a radio frequency (RF) signal.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/160,915Filed 3 Jun 2002

Published

4 Dec 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H03H 7/03
Frequency selective two-port networks: comprising means for compensation of loss
H03H 7/175
Comprising typical LC combinations, irrespective of presence and location of additional resistors: series LC in series path
H03H 7/1758
Comprising typical LC combinations, irrespective of presence and location of additional resistors: series LC in shunt or branch path
H03H 7/1766
Comprising typical LC combinations, irrespective of presence and location of additional resistors: parallel LC in series path

Unconditionally stable on-chip filter and applications thereof

Life of this patent

Unconditionally stable on-chip filter and applications thereof

Life of this patent

Abstract

Claims43