Microwave TR assembly with ultra-wide working bandwidth

Abstract

The invention discloses a microwave TR (Transmitter-Receiver) assembly with an ultra-wide working bandwidth. A transmitting link and a receiving link consist of a bidirectional amplifier, a one-to-four power divider and eight TR channels communicated with antennas; each TR channel comprises a power amplifier, an isolator, a transceiving switch chip, an amplitude limiter, a first-stage low-noise amplifier, and a multifunctional chip, a transmitting signal adjustable phase shifter, a transmitting signal driving amplifier, an adjustable attenuator, a receiving signal adjustable phase shifter anda second-stage low-noise amplifier which are integrated on the LTCC multilayer circuit substrate; a multifunctional chip is integrated on an LTCC multilayer circuit substrate; the number of microwavechips and interconnection circuits thereof are reduced as much as possible; meanwhile, the microwave grounding continuity of the LTCC multilayer circuit substrate is better, the working bandwidth is wider, the adjustable phase shifter and the adjustable attenuator arranged in each transmitting and receiving channel are combined to fix and adjust the phase and amplitude of signals, and the amplitude and phase consistency of transmitting and receiving signals of each TR channel is ensured.

Description

technical field [0001] The invention relates to the field of active phased array radar, in particular to a microwave TR assembly with ultra-wide working bandwidth. Background technique [0002] Radar equipment is mainly used for target detection and trajectory tracking; communication equipment is mainly used for information and intelligence transmission; electronic countermeasure equipment is used for monitoring, intercepting information, identifying danger and warning, and guiding interference; with the development of each system, the performance All have been improved, and the cost, weight, and platform space occupation of each system have increased. [0003] The integrated integrated radio frequency system of radar and electronic warfare uses phased array radar as the carrier, adopts a common active phased array antenna, and uses multiple beams to realize multi-functions such as radar, communication, and electronic warfare, which can not only reduce the cost of electronic...

AI Technical Summary

Problems solved by technology

[0006] The working bandwidth of traditional components is generally 10%, for example, the center frequency is 6GHz, and the working bandwidth is 5.7-6.3GHz. To achieve ultra-wide working bandwidth, it is necessary to add a frequency synthesis module, which makes the structure of TR components more complex and cannot be realized. Light and small; and the wider the bandwidth, the more difficult it is to adjust the phase and amplitude consistency

[0007] Therefore, the existing technology still needs to be improved and developed

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