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Lens Antenna Method, Diagonal incidence type
electric wave absorber (material), return loss measurement system (for 2.6-26.5GHz)
JIS　R1679 : 2007/IEC　62431 : 2008

Catalog No. eas03002010704-01

It is suitable for the evaluations of the electric wave absorption material and the shield material, etc.
The error by the airgap doesn't occur, because the measurement system doesn't put the sample in Ficcha, unlike the coaxial tube type or waveguide type.
The antenna can be mounted on the lens, compact even though the plane wave samples can be measured.
The sample can be smaller, because we can set a sample close to the antenna.
It is deployed in ITS, ETS systems.
It can measure a vertical angle of incidence. (If you have the vector network analyzer).
There is a transportable type, it can measure the heavy and not moved electric wave absorber, like concrete wall or asphalt road.

Reason with high accuracy
･ It is a plane wave, and there is a phase on the specimen side.
･ As it is parallel beam, an unnecessary electric wave is not incident on a lens.
･ Anechoic chamber is not required.
･ The dynamic range is wide,it is more than 50dB in case of multiplied by gating, and it is more than 40dB without gating.

Standardization

JIS　R1679 : 2007
IEC　62431 : 2008


Specifications

Measurement frequency 2.6-26.5GHz Specimen size, more than 450×450 mm
Angle of incidence (Normal-width) Minimum : ∠0　(Usually ∠15)
Maximum : ∠80		  
Main body size Height　2.1m , weight 150kg  

Model No.

Name Specifications Model No.
Main Body
　(Lens, Lens fixed frame,
　　Antenna fixed stand,
　　Metallic board for calibration)
Range of frequency 2.6-26.5GHz LAF-2.6A
Range of frequency 2.6-26.5GHz
The movable type
(that can measure the heavy and not moved electric wave absorber, like concrete wall or asphalt road)		 LAF Direct-2.6A
Antenna
　(with coaxial waveguide converter)
　　2 set		 Range of frequency 18-26.5GHz (WR-42) RH42S23SMA(f)7
Range of frequency 12.4-18GHz (WR-62) RH62S22SMA(f)7
Range of frequency 8.2-12.4GHz (WR-90) RH90S19SMA(f)7
Range of frequency 5.85-8.2GHz (WR-137) RH137S18SMA(f)7
Range of frequency 4.90-7.05GHz (WR-159) RH159S17SMA(f)7
Range of frequency 3.95-5.85GHz (WR-187) RH187S16SMA(f)7
Range of frequency 2.60-3.95GHz (WR-284) Rh284S14SMA(f)7
Range of frequency 1.70-2.60GHz (WR-430) RH430S14SMA(f)7
Soft ware for calibration and graphing.   DMP-20
cable and adaptor, for micro wave    
electric wave absorption material (when you use a small specimen)    
GPIB cable   GP-01
vector network analyzer,
spectrum analyzer + synthesizer, etc		 It is possible to buy it also.
Please inform us about the specification for which you hope.		  
Windows　PC (with printer) It is possible to buy it also.
Please inform us about the specification for which you hope.		  
* It is possible to measure it even with a small specimen while becoming a high frequency.
* When Gate is put on the lens beyond after the calibration with a standard vector network analyzer, it is possible to measure it up to the electric wave absorption amount -50dB or more.
* Please specify, "The angle of incidence is up to 90°" as shown in the photograph above when you want to measure the permeable characteristic.

Data sample