A Reference Noise Source with a Comb Output Characteristic Generating Emissions up to 40 GHz - York EMC Services Ltd

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A Reference Noise Source with a Comb Output Characteristic Generating Emissions up to 40 GHz

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Comb Generator Emitter 03

The Comb Generator Emitter 03 (CGE03) is a compact, battery-powered, reference signal source that generates a broadband conducted output from 900 MHz up to 40 GHz. When used as a verification reference source, the known output allows unknowns within systems or components to be measured or calculated.

The CGE03 is supplied with a 50 Ω 2.9 mm output connector for direct connection to conducted test systems, or to an external antenna in order to generate test fields for evaluating radiated emission test systems.

The CGE03 harmonic steps can be switched between 900 MHz and 1 GHz as standard, allowing more frequency points to be measured than is possible with a fixed-frequency source.

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Features

Stable output •  Repeatable measurements
900 MHz to 40 GHz output •  Applications across a broad frequency spectrum
  •  Applicable to harmonics of high frequency systems
Compact and Portable •  Comparisons between sites and environments
Battery powered •  No power or interconnecting cables affecting measurements

Applications

  • Reference source for:
    • Daily pre-test verification checks if required by the accreditation authorities
    • Long-term performance monitoring
    • Spectrum analyser / receiver pre-checks
  • Characterisation of filter performance
  • Cable loss measurements
  • Measuring amplifier gain and bandwidth
  • Radiated measurement system validation and verification (requires an additional antenna)
  • Inter-laboratory tets programs
  • Proficiency test programs

Specifications

Frequency Range •  900 MHz to 40 GHz direct connection into a 50 Ω system
  •  1 GHz to 26 GHz radiated using the optional MCN02 antenna
Step Size •  900 MHz or 1 GHz switchable
Output connector •  50 Ω 2.9 mm socket
Temperature stability •  (15 °C to 35 °C): <2 dB
Time stability •  Typically <1 dB over a 12 month period
Dimensions •  76 mm diameter × 96 mm (102 mm inc. connector) - CGE03C with battery pack
  •  76 mm diameter × 50 mm (56 mm inc. connector) - CGE03C without battery pack
Weight •  Approx 750 g (including battery)
Power supply •  5 V 2 AHr battery pack. External input 5.00 V ± 0.25 V, 500 mA
Operating Time •  4 hours typical with fully charged battery pack
Indicators •  Active, Mode 1 frequency step size - green LED
  •  Active, Mode 2 frequency step size - red LED

 

Standard Kits: 900MHz & 1GHz switchable comb step size

Part Number

Description

Parts included

CGE03KIT01 Standard CGE03C comb generator  •  CGE03C comb generator emitter with 
  emitter (conducted output) kit   2.9 mm socket output connector
     
CGE03KIT02 Standard CGE03 comb generator emitter CGE03C comb generator emitter with
  (conducted and radiated output) kit   2.9 mm socket output connector
    MCN02 1 to 26 GHz (optimum used with a CGE03C)
      75 mm diameter monocone antenna
       

All kit are supplied with:

   • BP01 5 V 2 AHr rechargeable battery pack
  •  BCH04 Universal input battery charger
  •  Hard case
  •  Manual
  •  CAL15 Standard conducted output power measurement test results, 0 to 40 GHz using 
     a spectrum analyser

Accessories:

MCN02 Detachable 75 mm diameter monocone antenna (1 to 26 GHz optimum, used with CGE03)
BP01 5V 2 AHr detachable battery pack

 

Manufacturer’s calibrations

CAL10 Radiated output
  • 1 to 16 GHz radiated electric field strength at 3 m in a FAR using a spectrum analyser
  • Optional for CGE03C kits when supplied iwth an MCN02 monocone antenna 
   
CAL15 Direct Output
  •  0 to 40 GHz direct power measurement using a spectrum analyzer
  •  Standard measurement for CGE03C kit

Typical Output Measurement Results