Matches 1 - 26 out of 26
Match Document Document Title
6518934 Parasitically driven dipole array  
A steerable dipole array including a plurality of end loaded electrically short dipole antenna sections arranged along a common longitudinal axis. The antenna sections include active...
6486839 Relative elevation detection for aircraft pilot warning system  
An elevation angle detection device uses signals from first and second of oppositely pointing antennas to determine an elevation angle of an emitting source. The signal from the second antenna is...
6201511 Composite antenna for duplexer-free duplex operation terminals and method  
An antenna assembly includes a receiving antenna and a separate transmitting antenna with an isolation circuit disposed in between to thereby isolate the Tx and Rx signals and provide a sufficient...
6005530 Switched gain antenna for enhanced system performance  
A switched gain antenna array comprising a plurality of dipole elements disposed in series with a phasing stub coupled between adjacent ones of the dipole elements. An antenna feed line is coupled...
5600339 Antenna  
An antenna comprising a first conductive element having a first end and a second end. The antenna is also comprised of a second conductive element having a first end and a second end. The second...
5481271 Two-wave antenna for telephones used in vehicles  
A two-wave antenna for telephones used in vehicles which includes two radiating elements in which one end of each of the two radiating elements is respectively connected to one end of a single...
5024447 Transmitter in arrow  
An arrow incorporating a radio signal transmitting device allows a hunter to find a lost arrow. The arrow includes a hollow aluminum shaft which acts as the primary transmitting antenna. A braded...
4872021 Collinear dipole array with inductive and capacitive phasing  
The antenna represents colinearly arranged half-wave dipoles. On the side of each final half-wave dipole is a quarter-wave dipole. The connection between the dipoles is alternately capacitive and...
4574290 High gain vertically polarized antenna structure  
A high gain vertically polarized antenna section includes a hollow conductive central cylinder which is used to encase feed lines and power dividers used for feeding the antenna section. The...
4220956 Collinear series-fed radio frequency antenna array  
A collinear series-fed antenna array formed from two spaced-apart electrical conductors extending parallel to one another in a longitudinal direction and having regularly spaced complementary...
4101902 Electronic scanning antenna  
There is described an electronic scanning antenna comprising a multiplicity of elementary radiators arranged for example in a vertical plane and constituting an array designed for simultaneous...
3153239 Omnidirectional vertically polarized antenna  
3151327 Plural electrically short concatenated coaxial stub antennas useful with aircraft  
3143736 Vehicle detection apparatus  
3055003 Spiral antenna array with polarization adjustment  
3031668 Dielectric loaded colinear vertical dipole antenna  
3022507 Multi-frequency antenna  
3016536 Capacitively coupled collinear stripline antenna array  
3014216 Wideband antenna  
3007167 Universal tv and fm antenna  
2996718 Multi-band vertical antenna with concentric radiators  
2967300 Multiple band antenna  
2966677 Linear waveguide type antenna array  
2861266 Localizer antenna system  
2821711 Wide band antenna  
2814039 Microwave antenna  
Matches 1 - 26 out of 26