| |
 |
|
Class Information
Number: 343/852
Name: Communications: radio wave antennas > Antennas > With coupling network or impedance in the leadin > Plural path with impedance matching
Description: Subject matter including a plurality of interrelated signal paths of which the passive coupling network is at least a part, and wherein the circuit elements of this arrangement are positioned and proportioned to reduce wave reflections arising from the interrelation of the signal paths.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7609220 |
Channelized log-periodic antenna with matched coupling |
Oct. 27, 2009 |
| 7400871 |
Multi-antenna receiving and processing circuit assembly |
Jul. 15, 2008 |
| 7162264 |
Tunable parasitic resonators |
Jan. 9, 2007 |
| 7013114 |
Impedence-matched transmitting device having high interference immunity |
Mar. 14, 2006 |
| 6903688 |
Antenna device |
Jun. 7, 2005 |
| 6727656 |
Power splitter for plasma device |
Apr. 27, 2004 |
| 6515557 |
Isolating signal divider/combiner and method of combining signals of first and second frequencies |
Feb. 4, 2003 |
| 6512489 |
Antenna arrangement |
Jan. 28, 2003 |
| 6509883 |
Signal coupling methods and arrangements |
Jan. 21, 2003 |
| 6489843 |
Power amplifier and communication unit |
Dec. 3, 2002 |
| 6147606 |
Apparatus and method for radio frequency transponder with improved read distance |
Nov. 14, 2000 |
| 6104356 |
Diversity antenna circuit |
Aug. 15, 2000 |
| 5969683 |
Radiotelephones with antenna matching switching system configurations |
Oct. 19, 1999 |
| 5952735 |
Method of and apparatus for optimizing the matching of pulse generators driving high "Q" tuned loads, by phase splitting |
Sep. 14, 1999 |
| 5771026 |
Disguised broadband antenna system for vehicles |
Jun. 23, 1998 |
| 5402138 |
Integrated MMDS/MDS antenna and dual band down converter |
Mar. 28, 1995 |
| 5089829 |
Antenna device shared by three kinds of waves |
Feb. 18, 1992 |
| 4635070 |
Dual mode antenna having simultaneous operating modes |
Jan. 6, 1987 |
| 4228544 |
Antenna system using antenna base impedance transforming means |
Oct. 14, 1980 |
| 4095229 |
Triband vehicle antenna |
Jun. 13, 1978 |
| 4051475 |
Radio receiver isolation system |
Sep. 27, 1977 |
| 3964070 |
Corrugated horn having means for extracting divergence-measuring modes |
Jun. 15, 1976 |
| 3942119 |
Multiple-transmission-channel active antenna arrangement |
Mar. 2, 1976 |
|
|
|
