Microwaves in Airborne Surveillance

  • S. Christopher Centre for Air-Borne Systems, Bangalore
Keywords: Airborne warning system, control system, microwaves, airborne surveillance


The use of microwave spectrum is widespread due to its convenience. Therefore, enormous amount of information is available in the free space channel. Obviously, mining this channel for surveillance is quite common. Airborne surveillance offers significant advantages in military operations. This paper talks of the usage of microwaves in airborne surveillance systems, in general, and in the Indian airborne early warning and control (AEW&C) System, in particular. It brings out the multiple sub-systems onboard the aircraft comprising the AEW&C system and their spectral coverage. Co-location of several systems has its own problems and resolving them in terms of geometric location, frequency band and time of operation are covered. AEW&C, being an airborne system, has several other requirements  including minimal weight, volume and power considerations, lightning protection, streamlining, structural integrity, thermal management, vibration tolerance, corrosion prevention, erosion resistance, static charge discharge capability, bird strike resilience, etc. The methods adopted to cater to all these requirements in the microwave systems that are used in the AEW&C system are discussed. Paper ultimately speaks of the microwave systems that are designed and developed for the Indian AEW&C system to surmount these unusual constraints.

Defence Science Journal, 2013, 63(2), pp.138-144DOI:http://dx.doi.org/10.14429/dsj.63.4255

Author Biography

S. Christopher, Centre for Air-Borne Systems, Bangalore
Dr S. Christopher obtained his BE (Hons) in (Electr. Comm. Eng.) from University of Madras, and  MTech from IIT Kharagpur. He received his PhD in Engineering from IIT Madras. He joined DRDO in 1988. He developed the slotted array technology, systematically from basics- a technology which only a few countries in the world have. He also served as the Project Manager of ASP and Project Director of LCA-MMR, MBA, ALH Radar, and various resource generation projects.
How to Cite
Christopher, S. (2013). Microwaves in Airborne Surveillance. Defence Science Journal, 63(2), 138-144. https://doi.org/10.14429/dsj.63.4255
Invited Paper