Tissue Equivalent Liquids for SAR(Specific Absorption Rate) Measurement
High accuracy and high stability to meet customers' needs
Benefits
NTT-AT's Tissue Equivalent Liquids are made mainly of non-ionic surfactant, and have outstanding accuracy and stability. In addition, they are human-body-friendly and environmentally friendly compared with other solutions made of oil or organic solvents manufactured by other vendors. It is also attractive because it is easy to handle.
The wide variety of NTT-AT's Tissue Equivalent Liquids products, applicble to a wide range of frequencies from 10 MHz to 5.2 GHz, is useful for measurements on various types of device such as cellular phones and wireless LANs.Features
NTT-AT's Tissue Equivalent Liquids have high-quality features such as support of a wide temperature range and easy recovery. Listed below are examples of data that prove its performance:
Supporting a wide temperature range
Because the temperature dependency of the relative permittivity and conductivity is sufficiently low, this Tissue Equivalent Liquids can be used for measurements in the temperature range between 18°C and -25°C. *3
*3 Note that the dielectric properties of some products may be out of range. Please contact us for details.
Easy to restore properties
The dielectric properties change due to moisture evaporation. However, it can be easily recoverd by adding deionized water.*4
The amount of water required to recover the product can be calculated theoretically. The correction formula is also provided.
*4 After the recovery, it may take half a day until the dielectric properties of the liquid stabilized.
It is recommended to stir the liquid well after the addition of deionized water and be kept quiet for half a day until starting measurement.
Specifications
| Item | Specifications |
|---|---|
| Color | Transparent light yellow*5 |
| Odor | Lightly scented |
| Content | 8 liters |
| Package size [H×W×D mm]*6 | 290×250×175 |
| Supported standards*7 |
Head tissue equivalent liquid:IEC 62209-01,IEEE-STD 1528,FCC OET BULLETIN 65,ARIB STB-T56 Body tissue equivalent liquid:FCC OET BULLETIN 65 2/3 Muscle equivalent liquid:AL/OE-TR-1996-0037*8 |
| Applicable laws and regulations*9 |
None of the laws below are applicable: Poisonous and Deleterious Substances Control Act,PRTR Law,Industrial Safety and Health Act |
*5: HT5000, and HT5200 are milky light yellow
*6: The container is made of polyethylene.
*7: The dielectric properties design values for this product are within 1% of the specified values (except HT5200).
However, the actual dielectric properties in products will be within 3% of the specified values.
*8: According to this report, the electric constant is defined as (muscle × 2 + fat)/3.
*9: MSDS is available for every product. Please contact us for the detail.
Wide range of Tissue Equivalent Liquids
Tissue Equivalent Liquids is provided for a wide range of frequency applications from 10 MHz to 5.2 GHz.*1
The Tissue Equivalent Liquids can be applied to the SAR evaluation of the head and body for various wireless terminals, such as cellular phones, smart phones, amateur radios, and wireless LAN devices. Customization is also available within the above-mentioned frequency range. Please feel free to contact us for the details.
The Tissue Equivalent Liquids can be applied to the SAR evaluation of the head and body for various wireless terminals, such as cellular phones, smart phones, amateur radios, and wireless LAN devices. Customization is also available within the above-mentioned frequency range. Please feel free to contact us for the details.
Supported frequency ranges
| divice | Frequency Band [MHz] | divice | Frequency Band [MHz] | |
|---|---|---|---|---|
| cellular phones, smart phones |
733 750 835 900 915 |
1450 |
PHS |
1900 1915 |
| wireless LAN devices |
2450 5200 |
|||
| amateur radios |
50 144 |
430 1260 |
satellite mobile communication |
150 1610 1624 2675 |
| wireless microphone |
300 700 900 |
MCA |
900 915 |
|
| WiMAX | 2600 | RF-ID |
13.56 915 |
|
| others |
30 450 1800 2018 |
2100 3000 5000 |
||
Past record
These NTT-AT's Tissue Equivalent Liquids are used widely, both domestically and overseas, not only for conventional radio wave measurements of mobile terminals but also for radio wave measurements by medical device manufacturers, general sports goods manufacturers who have wearable terminals in their product range, and research institutes including universities.
[Applicable industries]
Mobile (and other wireless) terminal manufacturers, Research Institutes on communications, Engineering laboratories of universities and Medical device manufacturers, General sports goods manufacturers.
[Countries where the products are sold]
NTT-AT's Tissue-Equivalent liquids have compatibility with the requirements of dielectric properties standardized by ARIB (Association of Radio Industries and Businesses), FCC, and IEC for the human head and body.
The product can be applied to SAR measurements for cellular phone, measurement of radiation patterns and development of receiving and transmitting antenna used nearby human body. The product is ecological, odorless, and has a low temperature dependency of dielectric properties.
Wide variety of the lineup enables to apply to measurement for wide range of frequencies used for several kind of wireless terminals.
These products are developed based on the studies in NICT(National Institute of Information and Communication Techinology).
-
Abundant lineup
You can select a suitable product for SAR measurements of Amateur Radio, GSM, PDC, W-CDMA, Wireless LAN, and Bluetooth.
-
Ecology and Safety
All constituents, surfactants, preservatives, salt and water, are materials which can be added in foods,and have less odor.
-
Easy handling and safe disposal
The product contains no poisonous or deleterious materials. It is also flameproof. (Please check and obey local regulations.)
-
Usable in broad temperature range
The dielectric properties of the product are stable and can be used in temperature range between 18 and 25 degrees Celsius except part of the products.
-
Does not damage phantom shells made of FRP or acryl
However, Polypropylenes have a possibility to make themselves harder.
-
Easy to restore
Dielectric properties can be easily adjusted with deionized water. (It takes about half a day to stabilize dielectric properties of the liquid after adjusting with deionized water. After the adjustment, we recommend you to mix the liquid thoroughly and then, be kept quiet half a day until starting measurement.
Specifications / Details
lineup
-
Head Tissue Equivalent Liquids moreinfo
Type Frequency Band [MHz] Type Frequency Band [MHz] HT0150 150 HT1767 1767.5 HT0300 300 HT1800 1800 HT0450 450 HT1950 1950 HT0835 835 HT2018 2018 HT0900 900 HT2100 2100 HT0915 915 HT2450 2450 HT1450 1450 HT3000 3000 HT1610 1610 HT5000 5000 HT1624 1624 HT5200 5200 -
Body Tissue Equivalent Liquids moreinfo
Type Frequency Band [MHz] Type Frequency Band [MHz] BT0050F 50 BT0915F 915 BT0144F 144 BT1260F 1260 BT0150F 150 BT1450F 1450 BT0300F 300 BT1610F 1610 BT0430F 430 BT1800F 1800 BT0450F 450 BT1950F 1950 BT0835F 835 BT2450F 2450 BT0900F 900 BT3000F 3000 -
2/3 Tissue Equivalent Liquids moreinfo
Type Frequency Band [MHz] Type Frequency Band [MHz] BT0050 50 BT0430 430 BT0144 144 BT1200 1200
Head Tissue Equivalent Liquids
| Type | HT0150 | HT0300 | HT0450 | HT0835 | HT0900 | HT0915 |
|---|---|---|---|---|---|---|
|
Frequency band [MHz] |
50 | 300 | 450 | 835 | 900 | 915 |
| Uses |
mobile satellite |
mobile satellite |
telemeter | GSM |
PDC CDMA |
PDC |
|
Relative Permittivity (*1) |
54.55 | 45.30 | 43.50 | 41.50 | 41.50 | 41.47 |
|
Conductivity [S/m](*1) |
0.75 | 0.87 | 0.87 | 0.90 | 0.97 | 0.98 |
| Color | light yellow, transparent | |||||
| Smell | minute smell | |||||
| NET [L] | 8 | |||||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | |||||
| Type | HT1450 | HT1610 | HT1624 | HT1767 | HT1800 | HT1950 |
|---|---|---|---|---|---|---|
|
Frequency band [MHz] |
1450 | 1610 | 1624 | 1767.5 | 1800 | 1950 |
| Uses | PDC |
mobile satellite |
mobile satellite |
(*3) | (*3) |
PHS W-CDMA |
|
Relative Permittivity (*1) |
40.50 | 40.27 | 40.25 | 40.05 | 40.00 | 40.00 |
|
Conductivity [S/m](*1) |
1.20 | 1.29 | 1.30 | 1.38 | 1.40 | 1.40 |
| Color | light yellow, transparent | |||||
| Smell | minute smell | |||||
| NET [L] | 8 | |||||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | |||||
| Type | HT2018 | HT2100 | HT2450 | HT3000 | HT5000 | HT5200 |
|---|---|---|---|---|---|---|
|
Frequency band [MHz] |
2018 | 2100 | 2450 | 3000 | 5000 | 5200 |
| Uses | (*3) | (*3) |
Wireless LAN etc. |
radar |
wireless access |
Wireless LAN etc. |
|
Relative Permittivity (*1) |
39.97 | 39.82 | 39.20 | 38.72 | 36.20 | 36.00 |
|
Conductivity [S/m](*1) |
1.42 | 1.49 | 1.80 | 2.43 | 4.40 | 4.70 |
| Color | light yellow, transparent | milky light yellow | ||||
| Smell | minute smell | |||||
| NET [L] | 8 | |||||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | |||||
- (*1)
- Standard values of relative permittivity and conductivity simulating liquid are comply with IEC 62209-01, IEEE STD1528, and ARIB STD T56.
- (*2)
- Containers are made of polyethylene.
- (*3) Telecommunication
body Tissue Equivalent Liquids
| Type | BT0050F | BT0144F | BT0150F | BT0300F | BT0430F | BT0450F | BT0835F |
|---|---|---|---|---|---|---|---|
|
Frequency band [MHz] |
50 | 144 | 150 | 300 | 430 | 450 | 835 |
| Uses |
amateur radio |
amateur radio |
mobile satellite |
mobile satellite |
amateur radio | telemeter | GSM |
|
Relative Permittivity (*1) |
64.37 | 62.05 | 61.90 | 58.20 | 56.90 | 56.70 | 55.20 |
|
Conductivity [S/m](*1) |
0.72 | 0.80 | 0.80 | 0.92 | 0.94 | 0.94 | 0.97 |
| Color | light yellow, transparent | ||||||
| Smell | minute smell | ||||||
| NET [L] | 8 | ||||||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | ||||||
| Type | BT0900F | BT0915F | BT1260F | BT1450F | BT1610F | BT1800F |
|---|---|---|---|---|---|---|
|
Frequency band [MHz] |
900 | 915 | 1260 | 1450 | 1610 | 1800 |
| Uses | PDC | PDC |
amateur radio |
PDC |
mobile satellite |
(*3) |
|
Relative Permittivity (*1) |
55.00 | 55.00 | 54.36 | 54.00 | 53.80 | 53.30 |
|
Conductivity [S/m](*1) |
1.05 | 1.06 | 1.21 | 1.30 | 1.40 | 1.52 |
| Color | light yellow, transparent | |||||
| Smell | minute smell | |||||
| NET [L] | 8 | |||||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | |||||
| Type | BT1950F | BT2450F | BT3000F |
|---|---|---|---|
|
Frequency band [MHz] |
1950 | 2450 | 3000 |
| Uses |
PHS W-CDMA |
Wireless LAN etc. |
radar |
|
Relative Permittivity (*1) |
53.30 | 52.70 | 52.00 |
|
Conductivity [S/m](*1) |
1.52 | 1.95 | 2.73 |
| Color | light yellow, transparent | ||
| Smell | minute smell | ||
| NET [L] | 8 | ||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | ||
- (*1)
- Standard values of relative permittivity and conductivity comply with FCC OET BULLETIN 65.
- (*2)
- Containers are made of polyethylene.
- (*3)
- Telecommunication.
2/3 Muscle Tissue Equivalent Liquids
| Type | BT0050 | BT0144 | BT0430 | BT1200 |
|---|---|---|---|---|
|
Frequency band [MHz] |
50 | 144 | 430 | 1200 |
| Uses | amateur radio | |||
|
Relative Permittivity (*1) |
55.78 | 46.06 | 42.37 | 40.64 |
|
Conductivity [S/m](*1) |
0.49 | 0.52 | 0.58 | 0.77 |
| Color | light yellow, transparent | |||
| Smell | minute smell | |||
| NET [L] | 8 | |||
|
Container size (H×W×D[mm]) |
290×250×175(*2) | |||
- (*1)
- Standard values of dielectric properties are calculated by formula ((dielectric constant of muscle)x2+(dielectic constant of fat))/3, based on Camelia Gabriel, Brooks Air Force Technical Report AL/OE-TR-1996-0037.
- (*2)
- Containers are made of polyethylene.
