Patents for H01Q 11 - Electrically-long aerials having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements (4,834) |
---|
11/18/1993 | EP0569390A1 Antenna system. |
11/11/1993 | WO1993022804A1 Steerable beam helix antenna |
11/02/1993 | US5258771 Interleaved helix arrays |
10/19/1993 | US5255005 Dual layer resonant quadrifilar helix antenna |
10/06/1993 | EP0564266A2 Circular polarization apparatus for micro wave antenna |
10/05/1993 | CA1322786C Mobile communications antenna |
09/29/1993 | EP0531312A4 Antenna structure and method of making same |
08/10/1993 | US5235342 Antenna array with system for locating and adjusting phase centers of elements of the antenna array |
08/04/1993 | EP0553707A1 Circulary-polarized-wave flat antenna |
08/04/1993 | EP0553094A1 Device for information transmission. |
08/03/1993 | US5233362 Maypole antenna |
07/14/1993 | EP0550660A1 Personal positioning satellite navigator with printed quadrifilar helical antenna |
06/10/1993 | WO1993011582A1 Compact broadband microstrip antenna |
06/01/1993 | US5216436 Collapsible, low visibility, broadband tapered helix monopole antenna |
05/25/1993 | US5214439 Drum-deployable multibay antenna |
05/18/1993 | US5212494 Compact multi-polarized broadband antenna |
04/13/1993 | US5202696 End fed half wave dipole antenna |
04/01/1993 | WO1993006631A1 Adjustable helical antenna for a vhf radio |
03/30/1993 | US5198831 Personal positioning satellite navigator with printed quadrifilar helical antenna |
03/23/1993 | US5196858 Deployable S-shaped antenna element |
03/17/1993 | EP0531312A1 Antenna structure and method of making same |
03/02/1993 | US5191352 Radio frequency apparatus |
03/02/1993 | US5191351 Folded broadband antenna with a symmetrical pattern |
02/24/1993 | EP0528175A1 Antenna receiving apparatus |
02/21/1993 | CA2074571A1 Antenna receiving apparatus |
02/16/1993 | US5187488 Tunable high-frequency antenna |
01/14/1993 | DE4121060A1 Transversely radiating coil aerial - has extra conductor starting at coil beginning and extending at opposite direction to coil |
01/07/1993 | EP0521511A2 Back fire helical antenna |
12/08/1992 | US5170176 Quadrifilar helix antenna |
11/26/1992 | WO1992021159A1 Radiowave antenna system |
11/17/1992 | US5164738 Wideband dual-polarized multi-mode antenna |
09/09/1992 | CN2115588U Log periodic antenna |
09/08/1992 | US5146235 Helical uhf transmitting and/or receiving antenna |
09/02/1992 | CN1064177A 天线系统 Antenna System |
08/25/1992 | US5142292 Coplanar multiple loop antenna for electronic article surveillance systems |
08/18/1992 | US5140336 Non-resonant antenna for wind profilers |
08/11/1992 | US5138331 Broadband quadrifilar phased array helix |
08/06/1992 | WO1992013373A1 Antenna system |
07/28/1992 | US5134422 Helical type antenna and manufacturing method thereof |
05/05/1992 | US5111213 Broadband antenna |
05/05/1992 | US5111211 Broadband patch antenna |
04/29/1992 | EP0482756A2 Wideband dual polarized multi-mode antenna |
04/15/1992 | CN1016300B 天线 Antenna |
04/14/1992 | US5105201 Glass mounted antenna for car radio |
04/02/1992 | WO1992005602A1 Personal positioning satellite navigator with printed quadrifilar helical antenna |
03/25/1992 | CN1059805A Micro antenna |
03/18/1992 | EP0386134A4 Antenna system for magnetic and resonant circuit detection |
03/03/1992 | US5093670 Logarithmic periodic antenna |
02/25/1992 | CA1296421C Log-periodic slot antenna |
02/05/1992 | EP0469741A1 Radio frequency apparatus |
01/25/1992 | WO1992001953A1 Device for information transmission |
01/25/1992 | CA2087980A1 Device for information transmission |
01/18/1992 | CA2047113A1 Logarithmic periodic antenna |
01/15/1992 | EP0465658A1 Four-wire fractional winding helical antenna and manufacturing method thereof |
01/14/1992 | US5081469 Enhanced bandwidth helical antenna |
01/07/1992 | CA1294002C Transmitter having pll circuit |
10/29/1991 | CA1291560C Helicoidal antenna and method for fabricating said antenna |
10/17/1991 | WO1991015621A1 Antenna structure and method of making same |
10/16/1991 | EP0301056B1 Microwave transformer |
10/15/1991 | US5057850 Foreshortened log-periodic dipole antenna |
08/20/1991 | US5041842 Helical base station antenna with support |
07/09/1991 | WO1991011038A1 Four-wire fractional winding helical antenna and manufacturing method thereof |
07/03/1991 | EP0434866A1 Dual mode log periodic dipole antenna |
06/20/1991 | CA2032334A1 Broad-band quadrifilar helical antenna and the like and feed network therefor |
05/22/1991 | EP0428229A1 tunable high-frequency antenna |
05/15/1991 | EP0427654A1 Tuned helical antennae consisting of two quadrifilar antennas fit into each other |
05/11/1991 | CA2029290A1 Dual layer resonant quadrifilar helix antenna |
05/08/1991 | EP0426566A1 Multifocal receiving antenna with one single pointing direction for reception from several satellites |
05/01/1991 | WO1991006988A1 Multifocal receiving antenna with a single plotting direction for several satellites |
05/01/1991 | CA2044586A1 Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites |
04/23/1991 | CA1283464C Microwave transformer |
04/09/1991 | US5006861 Antenna |
04/09/1991 | US5006860 Connection of T sections between half rings within annular housing |
03/06/1991 | EP0415574A2 Antenna array |
03/01/1991 | CA2023442A1 Antenna array |
01/01/1991 | US4982197 Dual mode log periodic dipole antenna |
12/11/1990 | US4977408 Deployable antenna bay |
11/13/1990 | CA1276289C Log - periodic hf antenna system |
10/24/1990 | EP0393875A1 A compact multi-polarized broadband antenna |
09/12/1990 | EP0386134A1 Antenna system for magnetic and resonant circuit detection. |
07/31/1990 | US4945363 Conical spiral antenna |
07/19/1990 | DE3927141A1 Kreispolarisations-antennensystem Circular polarization antenna system |
06/19/1990 | US4935747 Axial mode helical antenna |
05/01/1990 | US4922262 Log-periodic slot antennas |
05/01/1990 | US4922180 Controlled microwave sample irradiation system |
03/06/1990 | US4907011 Foreshortened dipole antenna with triangular radiating elements and tapered coaxial feedline |
02/06/1990 | US4899165 Variable circular polarization antenna having parasitic Z-shaped dipole |
12/28/1989 | WO1989012916A1 Antenna system for magnetic and resonant circuit detection |
12/27/1989 | EP0348054A2 Mobile communications antenna |
12/05/1989 | CA1263705A1 Rf antenna for transmission line sensor |
10/03/1989 | US4872022 Support and connection means for looped antenna conductors |
10/03/1989 | US4872021 Collinear dipole array with inductive and capacitive phasing |
09/06/1989 | CN2044103U All direction antenna loaded on vehicle with superwide-band and low outline |
08/29/1989 | US4862189 Microwave transformer |
08/15/1989 | US4857939 Mobile communications antenna |
07/18/1989 | US4849767 Helical antenna for small portable wireless devices |
07/18/1989 | CA1257694A1 Antenna system |
07/11/1989 | US4847627 Compact wave antenna system |
06/27/1989 | CA1256557A1 Sandwich-wire antenna |
06/14/1989 | EP0320404A1 Helix-type antenna and its manufacturing process |