| Patents for H01Q 17 - Devices for absorbing waves radiated from an aerial; Combinations of such devices with active aerial elements or systems (2,636) |
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| 10/02/1979 | US4170010 Inflatable radiation attenuator |
| 09/25/1979 | US4169268 Metallic grating spatial filter for directional beam forming antenna |
| 08/14/1979 | US4164718 Electromagnetic power absorber |
| 07/24/1979 | US4162496 Reactive sheets |
| 06/19/1979 | CA1056943A1 Constant beamwidth antenna |
| 03/06/1979 | US4143380 Compact spiral antenna array |
| 01/30/1979 | US4137361 Powder products |
| 01/10/1979 | EP0000305A1 Antenna having low side-lobes and high polarisation purity |
| 10/03/1978 | US4118704 Electromagnetic wave-absorbing wall |
| 09/26/1978 | US4116906 Ferrite powder, iron powder |
| 06/20/1978 | US4096483 Reflector with frequency selective ring of absorptive material for aperture control |
| 05/30/1978 | US4092459 Powder products |
| 05/02/1978 | US4087822 Radio frequency antenna having microstrip feed network and flared radiating aperture |
| 04/25/1978 | US4086591 Small aperture antenna |
| 04/11/1978 | US4084161 Ceramics, polyimides |
| 03/28/1978 | US4081803 Multioctave turnstile antenna for direction finding and polarization determination |
| 09/27/1977 | US4051476 Parabolic horn antenna with microstrip feed |
| 09/20/1977 | US4050073 Support for foam absorber of electromagnetic waves |
| 09/06/1977 | US4047174 Method of reducing the radar cross-section of a dielectric body |
| 08/23/1977 | US4044358 Self erectable structure |
| 07/26/1977 | US4038660 Microwave absorbers |
| 07/05/1977 | US4034375 Laminated camouflage material |
| 06/14/1977 | US4030098 Method and means for reducing reflections of electromagnetic waves |
| 06/07/1977 | US4027384 Microwave absorbers |
| 05/17/1977 | US4024318 Radar shields |
| 05/10/1977 | US4023174 Magnetic ceramic absorber |
| 03/15/1977 | US4012738 Combined layers in a microwave radiation absorber |
| 02/01/1977 | US4006479 Method for dispersing metallic particles in a dielectric binder |
| 01/18/1977 | US4003840 Ferrite powder and a polymer |
| 01/04/1977 | US4001827 Camouflage material |
| 12/14/1976 | US3997899 Low radar cross-section re-entry vehicle |
| 06/15/1976 | US3964069 Constant beamwidth antenna |
| 05/18/1976 | US3958247 Rf power coupling network employing a parallel plate transmission line |
| 04/20/1976 | US3951904 Electromagnetic wave absorbing material containing carbon microspheres |
| 02/10/1976 | US3938152 Magnetic absorbers |
| 02/03/1976 | US3936837 Corrugated horn fed offset paraboloidal reflector |