CEL :: Components


	Payment Status


	Right to Information

Components

MICROWAVE ELECTRONICS

CEL has the capability and infrastructure for the design and manufacture of Microwave ferrite phase shifters or Phase Control Modules (PCM) for use in the phased array radars - a capability possessed by very few in the world.

In addition, CEL has also the Software & Hardware capability to design/manufacture DF systems. Phase/Frequency Correlators, Antennas, selected MW Components, such as Filters, Power Dividers/Combiners, Hybrid Couplers, specific MIC/MWIC components in Microstripline/Stripline/Finline geometry, design of ASIC, etc.

Technology linkages have been setup with the following prestigious R&D institutions/laboratories of the country.

Electronics Radar Development Establishment (LRDE), Bangalore.
Defence Electronics Research Laboratory (DLRL), Hyderabad.
Defence Research and Development Laboratory (DRDL), Hyderabad.
Indian Institute of Technology (IIT), Delhi.
Solid State Physics Laboratory (SSPL), Delhi.
Defence Electronics Applications Laboratory (DEAL), Dehradun.

PHASE CONTROL MODULE :
A Phase Control Module (PCM) forms the core element of the phased array radar that acquires the basic capability of inertialess switching of the RF beam and scanning in minimal time.

The design of C - and X- band phase shifters has been standardised at CEL. In this regard, significant progress has been made on the project in close collaborations with Indian Institute of Technology (IIT), Delhi and Solid State Physics Laboratory (SSPL), Delhi.

Presently, CEL is supplying PCMs to Electronics and Radar Development Establishment (LRDE), Bangalore, for use in the Rajendra Radar.

Parameter	C Band	X Band
Bandwidth	500MHz	500 MHz
RF Power	250 W Peak	150 W Peak
Switching Time	150 ms	150 ms
Insertion Loss	0.6-0.8 dB	0.7-0.9 dB
Operating Temp.	0 to +60 C	0 to +60 C
Temp. Stability	0.5 deg/ C	0.5 deg/ C
Weight	80 gms	30 gms

POWER DIVIDERS/COMBINERS :
A power splitter is a passive device which accepts an input signal and delivers multiple output signals with specific amplitude and phase characteristics. We can design and develop N-port power dividers for any specified band and for given specifications. The dividers being reciprocal in nature may be used as power combiners as well.

SPECIFICATIONS :

Freq.Band	Ins. Loss	Return Loss	Amplitude Balance	Phase Balance
0.5-2 GHz	0.2 dB	25 dB	±0.1dB	±1º
2-8 GHz	0.4 dB	25 dB	±0.3 dB	±1.5º
8-18 GHz	0.75 dB	20 dB	±0.5 dB	±2º

DLRL, Hyderabad has transferred the technology for these components to CEL.

HBYBRID COUPLERS :
Hybrid, a four port symmetrical device is a special class of directional couplers. Quadrature and 180 deg hybrids are the most commonly used microwave components. We can take up development of directional couplers in a specified configuration for a specified frequency band.

SPECIFICATIONS :

Freq.Band	Ins. Loss	Return Loss	Amplitude Balance	Phase Balance
0.5-2 GHz	0.2 dB	25 dB	±0.1dB	±2.5º
2-8 GHz	0.4 dB	24 dB	±0.3 dB	±3º
8-18 GHz	0.75 dB	20 dB	±0.5 dB	±3.5º

The basic design for the couplers has been acquired from DLRL, Hyderabad.

PHASE/FREQUENCY CORRELATOR :
Frequency correlators are used in systems for measuring frequency, and the phase correlators are used to correlate the phases of two signals of same frequency. Output of these devices are two video signals in quadrature, which correlate the phase/frequency of the incoming signals. CEL has complete production and development base for these devices. The basic design of these correlators has been transferred from Defence Electronics Research Laboratory, Hyderabad.

PARAMETER	SPECIFICATIONS
Frequency Range	0.5 - 2GHz	2 - 8 GHz
Deviation from Best Fit Straight Line	±15º	±15º
Input VSWR	2.5 Typ. 3.0 Max	2.5 Typ. 3.0 Max
Output Video	50mv Min.	50 mv Min.
Voltage Levels	300mv Max.	300mv Max
RF Input Power	+8 to +12 dBm	+8 to +12 dBm
Operational Temp.	-40ºC to +70ºC	-40ºC to +70ºC

<< Back

CEL has been in news headlines ever since it started.


	Press Releases
	Coverage


		Introduction
		Strengths
		Milestones
		Message from CMD
		Organization Structure
		Future Endeavors


As the pre-eminent Technology and Production Enterprise, we at CEL are resolutely committed to...
read more