AP.25C.07.0080A

Introduction

RF antennas are devices used to transfer RF signals from a transmitting source, such as a radio or television transmitter, to a receiving device, such as a radio or television receiver. The AP-25C-07-0080A is an RF antenna specifically designed for direct broadcast satellite communications. This article will explore the application field and working principle of the AP-25C-07-0080A.

Application Field

The AP-25C-07-0080A is a gainhorn antenna designed for use in Direct Broadcast Satellite (DBS) communications systems. The antenna is typically used in DBS systems to receive transmissions from satellites located at geostationary orbit. The AP-25C-07-0080A is designed to operate in the frequency range of 11.7 to 12.7 GHz with a gain of 19.2 dB. Due to its wide beamwidth (150 ° FWHM), the AP-25C-07-0080A provides good coverage of wide areas of the earth\'s surface. This makes it suitable for applications such as wireless broadcast and point-to-multipoint telecommunications.

The AP-25C-07-0080A is also suitable for use in a variety of other applications, such as VSAT satellite communications systems. This antenna is also capable of handling signal strengths of up to 20 mV/m, which makes it suitable for use in radio communication systems. Its wide beamwidth makes it ideal for use in surveillance systems, such as in air-traffic-control towers.

Working Principle

The AP-25C-07-0080A antenna uses a Cassegrainian-type design. This type of antenna utilizes a combination of a primary parabolic reflector and a secondary subreflector to focus the radio waves onto a small area. The secondary subreflector is usually curved and mounted behind the primary reflector, which increases the gain of the antenna.

The primary reflector of the AP-25C-07-0080A is parabolic in shape. The reflector is designed to capture and focus the incoming radio waves onto a small area, increasing the gain of the antenna. The secondary subreflector is also curved and is designed to deflect the radio waves in the desired direction. This helps to direct the radio waves away from the antenna, thus increasing the gain further.

The antenna\'s feed horn is located in the center of the reflector and is responsible for transmitting and receiving the radio waves. The feed horn is connected to a waveguide that carries the radio waves to the amplifier and then to the receiving device. The amplifier helps to boost the signal strength so that it can reach the receiving device.

Conclusion

The AP-25C-07-0080A is a gainhorn antenna designed for use in direct broadcast satellite communications. It has wide beamwidth, making it suitable for a variety of applications such as wireless broadcasting, surveillance, and point-to-multipoint communications. The antenna utilizes a Cassegrainian-type design whereby a primary parabolic reflector and a secondary subreflector are used to focus the radio waves onto a small area. The antenna\'s feed horn is located at the center of the reflector, and is connected to a waveguide which carries the radio waves to the amplifier and then to the receiving device.