Concurrent triple-band gain amplifier for multi-standard coexist communications

A method of operating a gain amplifier in multiple frequency bands, the method comprising the steps of:

• amplifying a signal applied to an input of the amplifier in an amplification stage;
• and
• utilizing a set of elements of a triple-band resonance load connected between a DC bias voltage and a DC bias input of the amplification stage to provide match in a first frequency band, a second frequency band, and a third frequency band;
• the set of elements including a first capacitor, a first inductor, a second capacitor, a second inductor and a third inductor;
• the first capacitor and the first inductor being connected in parallel to form a shunt resonator;
• the second capacitor and the second inductor being connected in series to form a series resonator;
• and the above shunt resonator and the series resonator being connected in parallel, which is then connected in series with the third inductor.

A signal receiver comprising:

• at least one antenna for receiving a signal in at least one of a first frequency band and a second frequency band;
• a filter having an input coupled to an output of the at least one antenna, the filter providing filtering of the received signal in at least one of the first and second frequency bands;
• a gain amplifier having an input coupled to an output of the filter, the gain amplifier including an amplification stage for amplifying the received signal applied to an input of the amplifier, and a triple-band resonance load connected between a DC bias voltage and a DC bias input of the amplification stage, triple-band resonance load connected between a DC bias voltage and a DC bias input of the amplification stage to provide match in a first frequency band, a second frequency band, and a third frequency band;
• the set of elements including a first capacitor, a first inductor, a second capacitor, a second inductor and a third inductor;
• the first capacitor and the first inductor being connected in parallel to form a shunt resonator;
• the second capacitor and the second inductor being connected in series to form a series resonator;
• the above shunt resonator and the series resonator being connected in parallel, which is then connected in series with the third inductor;
• and
• a signal converter having an input coupled to an output of the amplifier, the signal converter converting the received signal to an intermediate frequency.