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  • 摳圖後-機載遙測-1_副本

Airborne telemetry antenna

Description:

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Product Description:

1. The antenna is a part of the digital beamforming self-tracking system. The unit adopts orthogonal symmetrical oscillator structure and hexagonal structure arrangement, and receives left-right circular double-circular polarization signals through circular polarization network;

2. The antenna is a calibration network, and the input reference signal is distributed to seven dual-channel low noise amplifiers according to the principle of constant amplitude in phase; According to the control signal, the low noise amplifier chooses the access antenna to receive the signal or the calibration reference signal;

3, amplifier circuit gain is high, low noise factor, with high dynamic reception function;

4, the antenna structure head tilt, consistent with the top of the cabin, part of the structure using stainless steel material, with enough strength to meet the vibration requirements of the aircraft.


Electrical Specifications

Passive antenna:

Frequency Range(MHz):2200~2300

Gain(dBi):≥6(Zenith gain)

Polarization:Double circular polarization


Dual low noise amplifier:

Frequency Range(MHz):2200~2300

LNA Gain(dB):35±2

Mode control signal:

Through-core capacitance, TTL level, inverter isolation

The high level corresponds to the antenna signal, and the low level corresponds to the reference signal

Status control signal:

Through-core capacitance, TTL level, inverter isolation

High level corresponds to high gain, low level corresponds to low gain

Burn-out resistance (dBm) : 20dBm continuous wave

Calibration mode isolation: the antenna signal is cut off, and the insertion loss is not less than 40dB

Calibration port consistency: The amplitude difference between the calibration port and the two inputs does not exceed ±0.2dB. The phase difference between the calibration port and the two inputs does not exceed ±1°


Mechanical Specifications

Connector:Power port:J30J-9ZK

Rf port :TNC-K

Serial port :J30J-15ZKP

Network port :J30J-15ZKP

Dimensions(mm): Ф182.1×559.72

Weight(kg):<15



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