Frequency change Method,
Free Space Type
Dielectric Constant, Dielectric Loss Tangent, Transmission attenuation
(Permittivity, Dk/Df) Measurement equipment

Model No. DPS10

Without Anechoic chamber ! Accurate solution !! Suitable for measurement of emblem, radome, tough and thick materials, metamaterials etc.

This system measures permittivity and dielectric loss tangent in free space, eliminating a need for an anechoic chamber, suitable for measuring samples that cannot be cut or those of thick materials.

Its measurement method was newly developed, because conventional free space measurement s - parameter method does not gives enough accuracy.

Compared with s - parameter method, the system is characteristic in that it's easy just to perform zero calibration to measure, and its measurement accuracy is high enough to measure PTFE.

This system employs a deduction method in the measurement on the principle that the frequency characteristics of the transmission attenuation of radio wave radiated onto a plate is dependent on εr'.

Unlike coaxial tube or waveguide type, which uses samples housed in the fixture, it does not introduce errors resulting from air gaps.

In addition, because a lens is attached to the antenna, it is compact yet can measure samples with a plane wave, resulting in a high measurement accuracy.

Moreover, because measurement samples are placed near the antenna, sample size can be small.

Depending on the device type, radio wave absorption can also be measured.

Please see this page also : Multilayer Simulation Software for designing car emblem or radome.

Features

Measured value is accurate.
The measurement is very simple. S-Parameter Method needs TRL calibration and it's time-consuming. On the other hand, with this Frequency Change Method, you can perform measurement just after 0 calibration.
You can check anisotropy of materials with ease. Most of materials have anisotropy.
Though you see ingredients of your materials are uniformly distributed, in fact, they may be not. In such case, you can check the fact quickly.
Compared with other measurement solutions, this method can reduce limitations in test pieces. You can prepare the samples easily.

Electric Field Direction

Basic setting: perpendicular to the ground, vertically or horizontally in the in-plane direction
👉This makes it possible to check anisotropy in in-plane direction of the sample

Specifications

Items	Details
Frequency	2.6GHz to 18GHz / 18GH to 300GHz ※Significant range within the measurement range.
εr'	1.5 to 150 Accuracy(repeated accuracy) : ±1% or ±0.01(depend on the accuyracy of network analyzer) (Repeated accuracy) + (relative accuracy to the true value, based on PTFE) : ±3%(depends on the measurement theory and jig's design)
tan δ	0.0001~20 Accuracy(repeated accuracy) : ±2%(depend on the accuracy of network analyzer) (Repeated accuracy) + (relative accuracy to the true value, based on PTFE) : ±5% or ±0.0001(depends on the measurement theory and jig's design)
Temperature range	DPS10-05ex：　-70℃~+300℃ DPS10-05：　-40℃~+150℃ The other：　Room Temperature
Size of specimen	600mm x 600mm or more @2.6GHz 150mm x 150mm or more @18GHz 80mm x 80mm or more @76.5GHz
Thickness of specimen	At least 1mm (a thickness enough for attenuation of radio waves)
Specimens	Resin, glass, GFRP, Honeycomb materials, wood, cement, metamateials, etc..

Data example (English version available)

Quartz

23GHz

Specimen	Quartz
Thickness	2.98mm

Frequency	Result
Frequency	εr'	tanδ
23GHz [16~30GHz]	3.81	0.0003
250GHz [240~260GHz]	3.81 *1) 3.82	0.0016 *2) 0.0015

*1)2)Measurement performed with Open Resonator (JIS R 1660-2).

250GHz

Polycarbonate

Specimen	Polycarbonate
Thickness	4.95mm
Frequency	around 50GHz (40GHz~60GHz)
Result	εr' 2.60 tanδ 0.006

Components

DPS10-MD01	DPS10-MD03
H475mm x W1100mm x D700mm（Standard）	H2350mm x W520mm x D520mm（Standard）

DPS10-MD02	DPS10-MD05
H350mm x W1725mm x D160mm（Standard）	H820mm x W200mm x D200mm（Standard）※JIG ONLY

LAF-2.6A+

LAF-26.5A, LAF-26.5B

LAF-26.5A		LAF-26.5B

Order information - Model No.

Name	Specifications	Model No.	Product Code
Main body	for 18GHz to 67GHz) *Antenna angle adjustable	DPS10-01	DPS10-MD01
	for 18GHz to 325GHz Antenna angle adjustable MM-wave module stand included	DPS10-07	DPS10-MD07
	for 18GHz to 325GHz *MM-wave module stand included	DPS10-02	DPS10-MD02
	for 2.6GHz to 18GHz	DPS10-03	DPS10-MD03
	for 60GHz to 90GHz(-70~+300℃) *Customizable for the other frequencies	DPS10-05ex	DPS10-MD05-H300
	for 60GHz to 90GHz(-40~+150℃) *Customizable for the other frequencies	DPS10-05	DPS10-MD05-H150
	for 60GHz to 90GHz Vertical type No extention of Frequency Range Customizable for the other frequencies	DPS10-06	DPS10-MD06-H150
	for 2.6GHz to 26.5GHz（Electric Wave Absorber, Return Loss Measurement System EAS03)	LAF-2.6A+	-
	for 26.5GHz to 110GHz（Electric Wave Absorber, Return Loss Measurement System EAS03)	LAF-26.5A	-
Option	Turnable Sample Stand(manuial,0.1°)	DPS10-02OP01	-
Antenna (with coaxial waveguide converter) 2 sets required	1.70-2.60GHz (WR-430)	RH430S14SMA(f)7	-
	2.60-3.95GHz (WR-284)	RH284S14SMA(f)7
	3.95-5.85GHz (WR-187)	RH187S16SMA(f)7
	4.90-7.05GHz (WR-159)	RH159S17SMA(f)7
	5.85-8.2GHz (WR-137)	RH137S18SMA(f)7
	8.2-12.4GHz (WR-90)	RH90S19SMA(f)7
	12.4-18GHz (WR-62)	RH62S22SMA(f)7
	18-26.5GHz (WR-42)	RH42S23SMA(f)7
	33-50GHz (WR-22)	RH22R23APC2.4(f)7
	26.5-40GHz (WR-28)	RH28S23SMA(f)7
Antenna (with waveguide) 2 sets required	50-75GHz (WR-15)	RH15S10	-
	75-110GHz (WR-10)	RH10S10
	110-170GHz (WR-6)	RH06S10
	170-260GHz (WR-4)	RH04S10
	220-325GHz (WR-3)	RH03S10
Calculation Softwere(Windows)	Software for Frequency Change Method	DMP-002040619-01	-
Calculation Softwere(Windows)	Software for calibration and graphing	DMP-20	-
Thermostatic Chamber Control Program	Supporting ESPEC products	DMP-X	-
Multilayer plate Simulation software for making designs of emblem and radome	Can estimate the return loss of absorption materials with a single layer of any thickness from the measured complex εr and complex μr.	SFW05	-
Coaxial cable for measurement	Two cables	ex）CM06D-APC2.9(m)APC2.9(m)-1000	-
GPIB cable		GP-01	-
VNA	We will provide you with a quotation upon request.	VNA	-
Laptop PC(Windows)	Setting service and usage instructions included	CP	-

Frequency change Method, Free Space Type Dielectric Constant, Dielectric Loss Tangent, Transmission attenuation (Permittivity, Dk/Df) Measurement equipment