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| Number | Title | Issue Date |
| 4157548 | Offset fed twin electric microstrip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 06/05/1979 |
| 4157550 | Microwave detecting device with microstrip feed line A microwave detector comprises a tapered ridged horn that terminates in a ridged waveguide formed with a slot extending through a broad wall of the waveguide and through the ridge that accommodates a stripline positioned so that a pair of diodes are conne... | 06/05/1979 |
| 4155089 | Notched/diagonally fed twin electric microstrip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 05/15/1979 |
| 4151530 | End fed twin electric microstrip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 04/24/1979 |
| 4151532 | Diagonally fed twin electric microstrip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 04/24/1979 |
| 4151531 | Asymmetrically fed twin electric microstrip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 04/24/1979 |
| 4142190 | Microstrip feed with reduced aperture blockage A parabolic reflector is fed by a microstrip antenna supported at the focus y a tube aligned along the focal axis of the reflector. The invention described herein may be manufactured and used by or for the Government for governmental purposes without the paymen... | 02/27/1979 |
| 4138684 | Loaded microstrip antenna with integral transformer A microstrip antenna design according to which the impedance matching transformer is contained in the area usually occupied entirely by the etched metal radiator.... | 02/06/1979 |
| 4131893 | Microstrip radiator with folded resonant cavity A resonant microstrip radiator wherein the size of the radiator is reduced in the resonant or non-resonant dimensions, or both, without reducing the effective resonant dimension or substantially lowering the efficiency of the radiator. Reduction of the re... | 12/26/1978 |
| 4131892 | Stacked antenna structure for radiation of orthogonally polarized signals A resonant circularly or elliptically polarized microstrip radiator wherein the size of the radiator is reduced in the resonant or non-resonant dimensions, or both, without reducing the effective resonant dimension or substantially lowering the efficiency... | 12/26/1978 |
| 4131894 | High efficiency microstrip antenna structure A microstrip antenna wherein a cavity or channel is formed in the ground plane conductor to reduce radiation losses and cross-coupling between elements. A shielded embodiment is also disclosed.... | 12/26/1978 |
| 4130822 | Slot antenna A stripline radiating element for use in a flat plate antenna array. The radiating element is comprised of a stripline sandwich including first and second stripline boards. A U-shaped slot is etched in the ground plane of the first stripline board and an ... | 12/19/1978 |
| 4125837 | Dual notch fed electric microstrip dipole antennas Circularly polarized microstrip antennas consisting of thin electrically ducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are use... | 11/14/1978 |
| 4125839 | Dual diagonally fed electric microstrip dipole antennas Circularly polarized microstrip antennas consisting of thin electrically ducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are use... | 11/14/1978 |
| 4125838 | Dual asymmetrically fed electric microstrip dipole antennas Circularly polarized microstrip antennas consisting of thin electrically ducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are use... | 11/14/1978 |
| 4118706 | Microstrip-fed parasitic array A multi-director parasitic array attached at the center of a microstrip anna design to provide a simple, low cost, efficient feed.... | 10/03/1978 |
| 4117489 | Corner fed electric microstrip dipole antenna A corner fed electric microstrip dipole antenna consisting of a thin eleccally conducting, preferably rectangular or square shaped radiating element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface. The feed... | 09/26/1978 |
| 4110751 | Very thin (wrap-around) conformal antenna A new type of thin-walled dielectric loaded antenna which is capable of fh mounting to almost any surface contour. This very thin wrap-around antenna consists essentially of 2 modified cavity-backed slot radiators, spacially positioned 180° apart. Typic... | 08/29/1978 |
| 4101896 | Camouflaged dual-slot antenna A low profile camouflaged antenna for military vehicles and the like. The tenna comprises an elongated, typically rectangular, sheet of metal curved to conform to the curvature of the vehicle. Insulated spacers, for example of plastic or fiberglass, maint... | 07/18/1978 |
| 4101895 | Multifrequency antenna system integrated into a radome An antenna system that comprises two or more linear arrays within close pimity which can be integrated into a conical dielectric radome. The elements of each array are wedge shaped open-ended cavity radiators plated on the outside of the radome structure... | 07/18/1978 |
| 4095227 | Asymmetrically fed magnetic microstrip dipole antenna An asymmetrically fed magnetic microstrip dipole antenna consisting of a n electrically conducting, rectangular-shaped radiating element formed on one surface of a dielectric substrate, the ground plane being on the opposite surface with the radiating el... | 06/13/1978 |
| 4089003 | Multifrequency microstrip antenna Three spaced apart electrically conducting discs coaxially mounted with dielectric material therebetween, one outside disc forming a ground plane and the center disc being driven by a lead through the ground plane to form a first microstrip antenna resona... | 05/09/1978 |
| 4084162 | Folded back doublet microstrip antenna A folded back doublet antenna including two symmetrical half-plates separd at their one ends by a cut, a long, continuous plate separated from one side of each of the half-plates by a gap, linking sections joining the other external ends of the half-plat... | 04/11/1978 |
| 4083046 | Electric monomicrostrip dipole antennas The electric monomicrostrip dipole antenna is a family of new electric mistrip antennas. The electric monomicrostrip dipole antenna consists of a thin electrically conducting element formed on one side of a dielectric substrate; the ground plane being on... | 04/04/1978 |
| 4079268 | Thin conformal antenna array for microwave power conversion A structure of a circularly polarized, thin conformal, antenna array which may be mounted integrally with the skin of an aircraft employs microstrip elliptical elements and interconnecting feed lines spaced from a circuit ground plane by a thin dielectric... | 03/14/1978 |
| 4078237 | Offset FED magnetic microstrip dipole antenna An offset FED magnetic 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 with the radiating element shorted to the ground plane. Th... | 03/07/1978 |
| 4074270 | Multiple frequency microstrip antenna assembly A very thin antenna assembly consisting of three electric microstrip ante systems arrayed on a single dielectric substrate over a ground plane and tuned to three different frequency bands. The low physical profile of the antennas and the assembly hollow ... | 02/14/1978 |
| 4072952 | Microwave landing system antenna A VHF/UHF communications blade type antenna additionally having microwave nding system (MLS) antenna elements mounted thereon and having the microwave feed components integral therewith to provide a composite structure adapted to function both as a commun... | 02/07/1978 |
| 4072951 | Notch fed twin electric micro-strip dipole antennas Twin electric microstrip dipole antennas consisting of thin electrically ducting rectangular shape elements formed on both sides of a dielectric substrate. In these antennas the element on one side of the substrate is the mirror image of the element on t... | 02/07/1978 |
| 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 |
| 4070676 | Multiple resonance radio frequency microstrip antenna structure A multiple resonance microstrip antenna radiator which includes a plurality of stacked electrically conductive element surfaces disposed above an electrically conductive reference surface with each element surface dimensioned so as to resonate at a differ... | 01/24/1978 |
| 4067016 | Dual notched/diagonally fed electric microstrip dipole antennas Circularly polarized microstrip antennas consisting of thin electrically ducting, square-shaped radiating elements formed on one surface of a dielectric substrate and having a ground plane on the opposite surface of the substrate. Two feed points are use... | 01/03/1978 |
| 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 |
| 4054874 | Microstrip-dipole antenna elements and arrays thereof Herein disclosed are antenna elements comprised of a dipole reactively coupled to a feed line on a microstrip board; and linearly and circularly polarized arrays of such elements.... | 10/18/1977 |
| 4053895 | Electronically scanned microstrip antenna array A microstrip electronically scannable antenna is realized by means of an array of disc elements that are separated from a common ground plane by a dielectric medium. The center of each disc element is electronically short circuited to the ground plane. At... | 10/11/1977 |
| 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 |
| 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 |
| 4051476 | Parabolic horn antenna with microstrip feed An antenna element is disclosed having a printed circuit parallel plate region with a parabolically shaped reflecting wall and a flared radiating section. The flared radiating section is disposed along an aperture which intersects the axis of the parabola... | 09/27/1977 |
