Abstract: A microstrip telemetry antenna adapted for use on a small diameter projectile. The antenna includes a filter integrally formed with the antenna. The antenna also has a first pair of tuning tabs and a second pair of tuning tabs which are approximately perpendicular to one another and which allow the antenna to tuned within the S-band of 2.2 to 2.3 GHz.

Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data, a telemetry antenna for transmitting telemetry data, a Flight Termination System antenna which receives an RF signal having a set of decoder tones and a beacon tracking antenna for providing an RF signal to allow tracking of the device utilizing the microstrip antenna system. The microstrip antenna system is designed for use on a missile.

Abstract: A GPS conformal adapted for use on a small diameter projectile. The antenna includes a GPS antenna array of six driven elements The antenna also has an antenna cover which includes a parasitic element aligned the six driven elements. The electric field coupling between the parasitic element and the driven elements produces an omnidirectional radiation pattern.

Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data, a telemetry antenna for transmitting telemetry data, a Flight Termination System antenna which receives an RF signal having a set of decoder tones and a beacon tracking antenna for providing an RF signal to allow tracking of the device utilizing the microstrip antenna system. The microstrip antenna system is designed for use on a missile.

Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data and a telemetry antenna for transmitting telemetry data mounted on a dielectric substrate. The microstrip antenna system is designed for use on small diameter airborne projectiles which have a diameter of about 2.75 inches. A pair of band stop filters are integrated into the antenna system to isolate the transmitted telemetry signal from the received GPS signal.

Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data and a telemetry antenna for transmitting telemetry data mounted on a dielectric substrate. The microstrip antenna system is designed for use on small diameter airborne projectiles which have a diameter of about 2.75 inches. A pair of band stop filters are integrated into the antenna system to isolate the transmitted telemetry signal from the received GPS signal.

Abstract: A microstrip antenna system having a GPS antenna for receiving GPS data and a telemetry antenna for transmitting telemetry data mounted on a dielectric substrate. The microstrip antenna system is designed for use on small diameter airborne projectiles which have a diameter of about 2.75 inches. A filter is integrated into the antenna system to isolate the transmitted telemetry signal from the received GPS signal.

Abstract: A switching interface for routing RF signals. The interface comprises a buffer decoder which receives first, second and third control signals and then decodes the signals to selectively turn on five RF switches. The decoded output signals from the buffer decoder are supplied to five pair of switch drivers for the RF switches. When a logic one is provided to a switch driver, the switch driver sets the RF switch to an ON position. When a logic zero to a switch driver, the switch driver set the RF switch to an OFF position. A window comparator monitors the outputs of the switch drivers for each of the five RF switches. Whenever one of the two output signals from the switch drivers is within a preset voltage range the window comparator provides a logic one and a logic zero which are supplied to a bit decode circuit.

Abstract: A crossed-dipole antenna having four antenna elements, the polarization of hich is easily changed from vertical linear polarization to horizontal linear polarization. A switching network coupled to the crossed-dipole antenna includes pin diodes operating as radio frequency switching elements which provide a means for electronically switching the polarization of the crossed-dipole antenna. A positive biased voltage applied to the switching network results in the crossed-dipole antenna being polarized linearly in a horizontal direction. A negative biased voltage applied to the switching network results in the crossed-dipole antenna being polarized linearly in a vertical direction.

Abstract: A device for generating a signal varying in frequency from 1 to 18 GHz at a onstant output power. The device utilizes a tracking automatic level loop and reacquire loop which provide automatic alignment of a YIG multiplier filter with a YIG voltage-controlled oscillator (VCO). Adjustability of output power level control is provided in the tracking automatic level loop with a provision for LED display when the device loses lock.