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Class Information
Number: 343/909
Name: Communications: radio wave antennas > Antennas > Antenna components > Refracting means and radio wave energy filters (e.g., lenses and polarizers)
Description: Subject matter including components which transmit therethrough a radio wave which impinges thereon from space and returns the wave to space after it has passed through and which modify the wave in transmission therethrough usually by delaying or accelerating some portions of the wave more than others, as follows: (1) alters the direction of propagation of the wave, as by refraction; (2) brings the wave front to a focus or converts a plane wave front to a spherical wave front or vice versa (3) changes the type of polarization, e.g., converts a plane polarized wave to a circularly polarized wave, or rotates the plane of polarization; (4) filters one or more polarization components (5) filters one or more frequency components.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8159413 |
Double-stacked EBG structure |
Apr. 17, 2012 |
| 8153907 |
Electromagnetic bandgap structure and printed circuit board |
Apr. 10, 2012 |
| 8149180 |
Antenna with resonator having a filtering coating and system including such antenna |
Apr. 3, 2012 |
| 8130171 |
Lens for scanning angle enhancement of phased array antennas |
Mar. 6, 2012 |
| 8125402 |
Methods and apparatus for multilayer millimeter-wave window |
Feb. 28, 2012 |
| 8120546 |
Indefinite materials |
Feb. 21, 2012 |
| 8106850 |
Adaptive spectral surface |
Jan. 31, 2012 |
| 8106851 |
Variable metamaterial apparatus |
Jan. 31, 2012 |
| 8098213 |
Frequency selective surface structure for filtering of single frequency band |
Jan. 17, 2012 |
| 8094081 |
Dual band radio frequency (RF) and optical communications antenna and terminal design methodology and implementation |
Jan. 10, 2012 |
| 8085202 |
Wideband, high isolation two port antenna array for multiple input, multiple output handheld devices |
Dec. 27, 2011 |
| 8081138 |
Antenna structure with antenna radome and method for rising gain thereof |
Dec. 20, 2011 |
| 8081117 |
Antenna device |
Dec. 20, 2011 |
| 8077104 |
Passive anti-jamming antenna system |
Dec. 13, 2011 |
| 8071931 |
Structures, systems and methods for harvesting energy from electromagnetic radiation |
Dec. 6, 2011 |
| 8059062 |
Antenna circuit and transponder |
Nov. 15, 2011 |
| 8044862 |
Antenna system having electromagnetic bandgap |
Oct. 25, 2011 |
| 8026862 |
Electromagnetic compression apparatus, methods, and systems |
Sep. 27, 2011 |
| 8013316 |
Metallic screens for sub-wavelength focusing of electromagnetic waves |
Sep. 6, 2011 |
| 8003965 |
Apparatus for sub-wavelength near-field focusing of electromagnetic waves |
Aug. 23, 2011 |
| 8004474 |
Non-cutoff frequency selective surface ground plane antenna assembly |
Aug. 23, 2011 |
| 7999747 |
Gas plasma microdischarge antenna |
Aug. 16, 2011 |
| 7994984 |
Antenna apparatus |
Aug. 9, 2011 |
| 7990328 |
Conductor having two frequency-selective surfaces |
Aug. 2, 2011 |
| 7982686 |
Frequency selective surfaces |
Jul. 19, 2011 |
| 7982673 |
Electromagnetic band-gap structure |
Jul. 19, 2011 |
| 7982687 |
Ka/Ku outdoor unit configuration using a frequency selective surface |
Jul. 19, 2011 |
| 7969165 |
Device for determining the distance between a rotor blade and a wall of a turbine engine surrounding the rotor blade |
Jun. 28, 2011 |
| 7965521 |
Electromagnetic bandgap structure and printed circuit board |
Jun. 21, 2011 |
| 7952533 |
Antenna element and frequency reconfiguration array antenna using the antenna element |
May. 31, 2011 |
| 7952526 |
Compact dual-band resonator using anisotropic metamaterial |
May. 31, 2011 |
| 7936310 |
High-impedance substrate |
May. 3, 2011 |
| 7936232 |
Substrate for semiconductor package |
May. 3, 2011 |
| 7929147 |
Method and system for determining an optimized artificial impedance surface |
Apr. 19, 2011 |
| 7928900 |
Resolution antenna array using metamaterials |
Apr. 19, 2011 |
| 7925222 |
Method and system for simultaneous FM transmission and FM reception using a shared antenna and a direct digital frequency synthesizer |
Apr. 12, 2011 |
| 7911386 |
Multi-band radiating elements with composite right/left-handed meta-material transmission line |
Mar. 22, 2011 |
| 7911407 |
Method for designing artificial surface impedance structures characterized by an impedance tensor with complex components |
Mar. 22, 2011 |
| 7903040 |
Tunable arrangements |
Mar. 8, 2011 |
| 7884718 |
Frequency selective surface aids to the operation of RFID products |
Feb. 8, 2011 |
| 7884778 |
Antenna structure with antenna radome and method for rising gain thereof |
Feb. 8, 2011 |
| 7868839 |
Planar scanner antenna for high frequency scanning and radar environments |
Jan. 11, 2011 |
| 7859476 |
Phase-shifting cell having an analogue phase shifter for a reflectarray antenna |
Dec. 28, 2010 |
| 7859482 |
Frequency selective surface waveguide switch |
Dec. 28, 2010 |
| 7855689 |
Antenna apparatus for radio communication |
Dec. 21, 2010 |
| 7855691 |
Automotive radar using a metamaterial lens |
Dec. 21, 2010 |
| 7851761 |
Multi-band terahertz receiver and imaging device |
Dec. 14, 2010 |
| 7847737 |
Antenna apparatus |
Dec. 7, 2010 |
| 7834818 |
Apparatus for attenuating reflections of electromagnetic waves, method for its manufacture and its use |
Nov. 16, 2010 |
| 7830310 |
Artificial impedance structure |
Nov. 9, 2010 |
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