Microwave photonic link characterization for phased array radar

Mathur, Manisha; Sridhar, N.; K., J.

doi:10.1109/ausms.2014.7017337

Cited by 2 publications

(5 citation statements)

References 7 publications

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“…The link budget is validated against calculations presented in [21]. The requirement of same frequency to be split for all digital receivers necessitates for 1:64 splitter, which introduces a loss of 17–20 dB in the system.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…Some of the major design criteria are listed below: Power budget calculation: This is fundamental step in design to finalize individual components. The power carrying capacity of rotary joint, receiver, waveform generator is required to be matched with the available commercial hardware [21]. Optical rotary joint: Antenna remoting requires optical rotary joint to carry multiplexed signal from baseband circuitry to rotating antenna array.…”

Section: Design Guidelinesmentioning

confidence: 99%

“…Power budget calculation: This is fundamental step in design to finalize individual components. The power carrying capacity of rotary joint, receiver, waveform generator is required to be matched with the available commercial hardware [21].…”

Section: Design Guidelinesmentioning

confidence: 99%

“…The power carrying capacity of rotary joint, receiver, waveform generator is required to be matched with the available commercial hardware [21]. This also helps in reducing harmonic distortion and intermodulation products.…”

Section: I I D E S I G N G U I D E L I N E Smentioning

confidence: 99%

“…Feasibility study of this design has been presented in [20] where phase delay of 800 ns is observed for 150 m spool of optical fiber. Detailed power budget calculation and microwave photonic link characterization is presented in [21].…”

Section: Introductionmentioning

confidence: 99%

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Microwave photonic network for active electronically scanned array radar

Mathur

Sridhar

2016

Int. J. Microw. Wireless Technol.

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Active electronically scanned array (AESA) radar has large number of transmit/Receive (T/R) modules which require multiple microwave and digital signals. Distribution of these signals through conventional method such as coaxial cable, twisted pair, etc. not only introduces engineering complexities and signal loss but also have limitation of bandwidth, data rate, transmission distance, etc. This paper addresses design and implementation of microwave photonic network for distribution of microwave and digital signals over single optical fiber using wavelength division multiplexing for AESA radars. The design challenge is to limit the variation in output radio frequency power within +1 dB over full operational band of radar from 2 to 4 GHz and functionality under hostile military environment. Optical amplifiers have been used in all channels to stabilize optical output independent of wavelength with automatic light control. The optical signal is split into 64 identical parts to feed multiplexed signal into different digital receivers physically spread across the antenna array. It is an additional challenge to normalize performance as all 64 receivers show variation in output in spite of identical electronic circuitry. Experimental results validate the feasibility of microwave photonic network for wide branching distribution of multiple microwave and digital signals for AESA radar.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%