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We developed
our anechoic chamber by taking advantage of the
characteristics of thin patterned absorption sheets.
It is a compact, simple anechoic chamber that requires
minimal installation space, resulting in easy development
measurement testing and easy quality assessment
of RFID reader/writers and RF tags that communicate
using the UHF band in any situation.
Its thin walls and compact size make it easy to
handle.
It offers an economical alternative to large anechoic
chambers for simply assessment of UHF band RFID
communication devices. |
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Offers a measurement environment
with little influence from external electromagnetic
noise. |
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Can reduce radio wave leakage into
surrounding areas. |
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Constructed in a way that creates
minimal reflection inside the anechoic chamber. |
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Vertical configuration
achieves a compact size requiring minimal installation
space while offering ease of handling. |
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Development and assessment
of UHF band wireless tag communication devices |
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Quality assessment of UHF band
wireless tag communication devices |
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| Features |
Simple
anechoic chamber for UHF band |
| Type
Notation |
PBX14
- 950Ｍ |
| Structure |
Aluminum
frame and radio wave absorber assembly |
| Usable
Frequency Range (MHz) |
950
MHz band |
| Radio
Wave Absorption |
Over
15 dB for horizontal and vertical waves |
| Standard
External Dimensions (mm) |
926
(w) × 966 (d) × 1885 (h) |
| Internal
Dimensions (mm) |
895
(w) × 890 (d) × 1885 (h) |
| Cover |
Anechoic
chamber side cover, 2 separate pieces |
| Weight |
60
kg |
| Applicable
Temperature Range (°C) |
-10
to +50 |
| Shipment
Format |
Box
format |
| Comments |
This
product comes standard with
castors and positioning
jigs. |
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* Can be designed for designated
frequencies between 860 MHz and 960 MHz
* Dimensions can be changed upon request.
* Figures above are neither standard nor guaranteed
values. |
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| Interference
from reflection is minimal inside the
anechoic chamber, approaching a value
close to the free space transmission
loss (theoretical value). |
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| In
terms of planar distribution, reception
voltage distribution is stable at the
center. Reception voltage near walls
is reduced due to absorption. |
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