DRDO ToT?
Yes definitely from LRDE lab.
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DRDO ToT?
@Gessler any idea where they are getting these updates from?
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Monstrous Virupaksha Radar of Su30 MKI Upgrade - alphadefense.in
DRDO’s Electronics and Radar Development Establishment (LRDE) is starting fabrication of the Virupaksha radar for the Indian Air Force’s Su-30MKI upgrade. They are setting up two assembly jigs to begin ground testing soon. Tight Assembly and Testing Timeline LRDE plans to deliver two fully...alphadefense.in
Well he corrected himself later. Its 2400 TRMs.@Gessler any idea where they are getting these updates from?
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Monstrous Virupaksha Radar of Su30 MKI Upgrade - alphadefense.in
DRDO’s Electronics and Radar Development Establishment (LRDE) is starting fabrication of the Virupaksha radar for the Indian Air Force’s Su-30MKI upgrade. They are setting up two assembly jigs to begin ground testing soon. Tight Assembly and Testing Timeline LRDE plans to deliver two fully...alphadefense.in
Hmm...a cylindrical antenna array. What could this be for?
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Low directionality bias, generally I have seen these configurations for weather, marine (and also space I think).... since targets of interest can vector in from anywhere, and you dont get bleed effects from planar polygon (keeping power output and frequency band same) that affects beam steering, width, polarisation etc (that need computation power to correct and address for planar).
Planar makes power density and circuitry more efficient. So there is a tradeoff at play till those things get miniaturised more, so I guess it depends on the final application needs and optimisation from the current sweetspot enjoyed by planar versus sweetspot enjoyed by spherical.
Cylindrical is somewhat halfway between planar polygon and pure spherical, so its got its mix of pros and cons in between the two.
US DoD has BAE fab with 140nm for GaAs, the workhorse for GaN is 180nm and they are targeting 90nm process. I don't know about others because this is what I got when i searched around. For GAETEC, I think they have been doing GaAs 500nm process node. Now I don't know what process node the above accomplishment is.@Nilgiri @Gessler Do you think GaAs MMIC are actually fabricated in India from Wafer level? Afterall if there was any there would be announcement right? GAETEC in Hyderabad is a Laboratory but not on level of Industrial or Production ready level to supply to Indian Industry for Radar Applications. I believe whether its Astra Microwave or Data Patterns they import the GaAs MMIC from other countries right? Afterall that's what we have been callling as Indigenous. I think they made the foundational aspects right otherwise this wouldn't get released in PIB. The "actual" stuff of making wafers and MMIC, not importing them and claims of beating F-22 or F-35.
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Indigenous Development of Silicon Carbide Wafers and GaN HEMT based MMIC Technology up to X-band Applications
Solid State Physics Laboratory, a DRDO laboratory, has successfully developed indigenous processes fpib.gov.in
Although above is lab-scale success, we have to actually invest billions if we are to run a Fabrication plant. But I believe its more about tactics, suddenly GaN MMIC are available to import from South Korea it seems I read news somewhere, which were earlier restricted. Due to demonstration of Indigenous capability, now foreign countries are open to export. It has happened millions of times when we achieved or on verge of achieving local capability. What do you think?
@Nilgiri @Gessler Do you think GaAs MMIC are actually fabricated in India from Wafer level? Afterall if there was any there would be announcement right? GAETEC in Hyderabad is a Laboratory but not on level of Industrial or Production ready level to supply to Indian Industry for Radar Applications. I believe whether its Astra Microwave or Data Patterns they import the GaAs MMIC from other countries right? Afterall that's what we have been callling as Indigenous. I think they made the foundational aspects right otherwise this wouldn't get released in PIB. The "actual" stuff of making wafers and MMIC, not importing them and claims of beating F-22 or F-35.
![]()
Indigenous Development of Silicon Carbide Wafers and GaN HEMT based MMIC Technology up to X-band Applications
Solid State Physics Laboratory, a DRDO laboratory, has successfully developed indigenous processes fpib.gov.in
Although above is lab-scale success, we have to actually invest billions if we are to run a Fabrication plant. But I believe its more about tactics, suddenly GaN MMIC are available to import from South Korea it seems I read news somewhere, which were earlier restricted. Due to demonstration of Indigenous capability, now foreign countries are open to export. It has happened millions of times when we achieved or on verge of achieving local capability. What do you think?