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| Number | Title | Issue Date |
| 4071847 | Radio navigation antenna system Tactical radio navigation systems provide bearing information to an interrogating aircraft in response to pairs of interrogation pulses received at a beacon transponder, such systems also provide distance measuring and identification information. To provi... | 01/31/1978 |
| 4071846 | Wired microstrip linear array of dipoles A microstrip linear array of dipoles is disclosed wherein the dipoles are phased in alternate directions thereby enabling them to be spaced at approximately one-half wavelength intervals along or across a microstrip line instead of the typical one wavelen... | 01/31/1978 |
| 4063245 | Microstrip antenna arrays A microstrip antenna array takes the form of a feeder strip and a plurality of elements, each in the form of a strip attached to the feeder strip at one end and having an open-circuit termination at the other. Arrays are disclosed which use standing waves... | 12/13/1977 |
| 4063246 | Coplanar stripline antenna A coplanar stripline antenna including a layer of dielectric material supporting a lower ground plane of conductive material on one side of the layer of dielectric material, a patch of conductive material on the other side of the layer of dielectric mater... | 12/13/1977 |
| 4060810 | Loaded microstrip antenna A microstrip antenna design according to which the resonant frequency can substantially reduced for a given size radiator, or to which the size of the radiator can be reduced for a given resonant frequency. As will be seen, a microstrip antenna loading i... | 11/29/1977 |
| 4051478 | Notched/diagonally fed electric microstrip antenna A notched/diagonally fed electric microstrip dipole antenna consisting of a hin electrically conducting, rectangular-shaped element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The length of the element d... | 09/27/1977 |
| 4051477 | Wide beam microstrip radiator A radio frequency antenna structure is disclosed wherein a raised pedestal portion of the ground plane surface is provided and above which pedestal portion a microstrip radiator is disposed. The microstrip radiator is thus disposed on a pedestal at a pred... | 09/27/1977 |
| 4040060 | Notch fed magnetic microstrip dipole antenna with shorting pins A notch fed magnetic microstrip dipole antenna consisting of a thin electally conducting, rectangular-shaped radiating element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface with the radiating element shor... | 08/02/1977 |
| 4031539 | Broadband turnstile antenna A truncated conical member of conductive material is mounted forward of a pair of crossed dipoles, the legs of which are inclined toward a reflector. The pair of dipoles cross orthogonal to each other at the dipole centers with the dipole halves being fed... | 06/21/1977 |
| 4021810 | Travelling wave meander conductor antenna A travelling wave conductor antenna including a ground plane. The antenna consists of meander-structure conductors made of a conductive material, zigzagging at right angles or at almost right angles. The conductors are placed above an even or deformed gro... | 05/03/1977 |
| 4017866 | Log sequential antennas A log sequential antenna is provided which has a unique configuration which allows for a plurality of different feed antenna systems to use an adjustable single slanted reflector screen with its lower end attached to the ground and primary ground reflecti... | 04/12/1977 |
| 4010470 | Multi-function integrated radome-antenna system A radome-integrated conformal parallel plate radiator for a projectile. An ntenna system consisting of open-ended dielectric load cavity radiators is incorporated into a dielectric radome structure for space conservation and operational versatility. A plur... | 03/01/1977 |
| 3995277 | Microstrip antenna Microstrip antenna having one or more arrays of resonant dipole radiator elements. The radiator elements have an E coordinate dimension of approximately ##EQU1## A feed line made up of similar, series-connected, semiresonant, approximately half-... | 11/30/1976 |
| 3987458 | Low-profile quadrature-plate UHF antenna A low-profile UHF antenna comprises two orthogonally positioned parallel te radiators that are semi-circular in shape. The base of each radiator (filled with dielectric material) is connected to a circular metal ground plane. The radiators can be collect... | 10/19/1976 |
| 3987456 | Wide relative frequency band and reduced size-to-wavelength ratio antenna A wide relative frequency band and reduced size-to-wavelength ratio antenna comprising essentially a first part in the form of a conductor ring and a second part in the form of a skirt respectively connected to the central and outer conductors of a coaxia... | 10/19/1976 |
| 3984839 | Low height VLF antenna system A low height, high efficiency antenna system in which a plurality of radiating elements are spaced to induce mutual radiation resistance in each other and the elements radiate using constant current which is obtained with a parallel folded element that re... | 10/05/1976 |
| 3978488 | Offset fed electric microstrip dipole antenna An offset fed electric microstrip dipole antenna consisting of a thin eleically conducting, element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The length of the element determines the resonant frequen... | 08/31/1976 |
| 3972050 | End fed electric microstrip quadrupole antenna An end fed electric microstrip quadrupole antenna consisting of a thin elrically conducting, rectangular-shaped element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The feed point is located at one end ... | 07/27/1976 |
| 3971032 | Dual frequency microstrip antenna structure A conformal microstrip antenna structure formed by a plurality of separated spaced-apart electrically conducting elements on a dielectric substrate overlying a ground plane. The innermost edges of the separated conducting elements define two sets of two i... | 07/20/1976 |
| 3947850 | Notch fed electric microstrip dipole antenna A notch fed electric microstrip dipole antenna consisting of a thin electally conducting, rectangular-shaped element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The length of the element determines the... | 03/30/1976 |
| 3938161 | Microstrip antenna structure A microstrip antenna structure is provided wherein a plurality of relatively narrow elements, resonant in their longer dimensions, are organized into two staggered or offset sets of interleaved elements with each set being fed from opposite sides of the s... | 02/10/1976 |
