Telecommunications – Transmitter – Having harmonic radiation suppression
Patent
1996-08-27
1999-01-19
Le, Thanh Cong
Telecommunications
Transmitter
Having harmonic radiation suppression
455115, 330 52, 330149, H04B 104, H03F 132
Patent
active
058624597
ABSTRACT:
An improved feed-forward multi carrier power amplifier architecture is described along with a novel array antenna wherein the improved amplifier may be advantageously put to use. The improved amplifier provides for independent control of unwanted intermodulation products generated in the amplifier. When used in the novel array structure, a separate radiation lobe containing the unwanted intermodulation products may be steered independently from a main radiation lobe. In a cellular base station application, the radiation lobe containing the unwanted intermodulation products may be steered away from the main radiation lobe thereby providing spatial filtering of the unwanted signals. The radiation lobe containing the unwanted intermodulation products may be steered rapidly in time using, for example, a noise like function to provide statistical averaging of the interference in the direction of desired communications.
REFERENCES:
patent: 4389618 (1983-06-01), Bauman
patent: 4554514 (1985-11-01), Whartenby et al.
patent: 4560945 (1985-12-01), Olver
patent: 4885551 (1989-12-01), Myer
Cong Le Thanh
Telefonaktiebolaget LM Ericsson
LandOfFree
Method of and apparatus for filtering intermodulation products i does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for filtering intermodulation products i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for filtering intermodulation products i will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1255668