KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.

Radar Cross Section (RCS) Measurement and Evaluation System

Model No. XRC

Keycom fully utilizes its advanced millimeter-wave and microwave system development ability to develop a variety of radar and radar test systems.

Along with standard radar targets, Keycom also offers a variety of systems that can accurately measure the radar cross section (RCS) of radar targets, such as aircraft, ships and automobiles.

If you have any questions or requests, please feel free to contact us!!!
👉e-mail: info@keycom.co.jp

【Related Contents】
👉For developing Radar(Microwave, Millimeter wave) in general : Please check here
👉For developing Automotive Radar : Please check here

1. Radar Cross Section (RCS) Measurement and Evaluation System

Imaging Radar [RCS11]   Approach Type RCS Measurement System [RAT08]

1. RCS (Radar Cross Section) measurement
- Creates images of reflection signals from targets of in-vehicle radar almost in real-time.
2. Monitoring of intruder or moving target (perimeter monitoring option available)
3. Level gauge
4. Fluid flow analysis

 

The system sends and receives pulsed waves as it moves toward the target whose RCS you want to measure.

It measures the RCS , and fits it to the radar equation to obtain correct value.

Through making several measurements by changing the position of radar or target, you can see how the multipath on the road surface affects the results.

It is also possible to set up a fence in the middle to measure, avoiding multipath effects.

     
RCS Imaging Evaluation System [RAT06]   Cylindrical type, Near/Far-Field Conversion RCS Measurement System [RCS03]

The visualization of the distribution of electromagnetic waves reflected from machines and other objects can contribute to the improvement of radiowave-absorbing materials and the shape of machines.
In addition, it is possible to compute the RCS for each part of the system or for the entire system by performing synthesis considering the phase of the reflected waves.

 

By combining the vertical movement of the two probe antennas with the rotational movement of measuring objects,it performs cylindrical near-field measurements and converts the measurement results into far-field.

     
Compact Range, Near/Far-Field Conversion RCS Measurement System-01 [RCS01]   Compact Range, Near/Far-Field Conversion RCS Measurement System-02 [RCS02]

1. The measurement antenna attached to the mast that is movable in EI direction receives the plane wave transmitted by the compact range antenna in near-field after reflected by the target.
2. Rotary motion of the target in Az direction enables omniazimuth measurement.
3. Monostatic measurement is made possible when the receiving antenna is placed in the center plane of the compact range antenna, and bistatic measurement when the antenna is placed off the center plane.
4. Received data is converted to far-field mathematically to create RCS and images.
·Not only monostatic but bistatic RCS can be measured by integrating Cassegrain antenna.

 

RCS02 irradiates a rotating sample with plane wave and receives reflected wave at a desired angle. It then executes near-far field conversion on the received data to acquire RCS.

     
76.5GHz RCS Quasi-Far Measurement System [RCS04]    

This is a system which simply measures RCS (Radar Cross Section) at 76.5 GHz.

The RCS value is calculated from the dBm value of the target using a corner reflector of an already - known RCS value as a reference point.

In conjunction with the rotating stage, the measurement can be performed while rotating the target at any angle range.

   
     

2. Radar Cross Section (RCS) Measurement and Evaluation System / Tools for Evaluation

76GHz Standard Radar (Pulse Radar) [PAR02]   Standard Radar Targets (Sphere or Triangular Trihedral) [RES02]

Antenna’s directional angle continuously variable 10° to 2° through dielectric lens antenna.

Its log amplifier enables highly accurate receiving level measurement, and converts it to DC voltage.

Distance accuracy: ±15cm.

With specified low power device, no radio license or certification necessary.

 

Spherical type Triangular trihedral type
(corner reflector)
No directionality, simple operation. Wide directionality

     
Silicone phantom (Silicon phantom) [EMA06]    

Human body phantom for
・Driving test of collision avoidance radar,
・Development of radar system,
・Measuring specific absorption rate (SAR) of smart phone,
・Testing wearable communication tool.

The electric constant is in compliance with IEEE15528.

  • We can also make it so that only the skin can be separated
  • Easy to drill holes.
   
     

3. RCS Simulation Software

RCS Simulation Software (ACES) [SFW03]    

KEYCOM has adopted PTD method, the best choice in RCS simulation of car, vessel, human body etc.,because of its high accuracy and fast calculation time.
In evaluating scattering of electromagnetic waves, KEYCOM improved physical-optical approximation (PO) method,realizing higher accuracy, shorter calculation time to be suitable for large targets.