Database
| No. | Contents | Data type | Location | Date of registration | Registrant |
| 8 | Path loss close to ceiling with concrete beam | measurement | 2F, Bld. B21, Kadoma area, Panasonic Corp., Japan | May. 1st 2023 | N.Yamamoto (Panasonic Corp.) |
Parameters
| Parameter | Value |
| Frequency | 928 MHz |
| Transmission signal | FSK |
| Bandwidth | 200 kHz |
| Transmit power | 0 dBm |
| Tx antenna height | -0.1 m, +0.1 m, +0.6 m with the end face (bottom) of the concrete beam as the reference (0 m) |
| Rx antenna height | Same as Tx antenna height |
| Tx/Rx antenna | Sleeve dipole antenna (2.15 dBi) |
| Data processing | ・Path loss [dB] = Transmit power [dBm] – Received power [dBm] + Antenna gain of Tx antenna (2.15dBi) + Antenna gain of Rx antenna (2.15dBi) ・Snap shot Data |
Measurement environment
Layout of measurement location (X-Z plane)
Layout of measurement location (Y-Z plane)
Photo of measurement environment
Registered data
(a) \(h\)=-0.1 m
(b) \(h\)=+0.1 m
(c) \(h\)=+0.6 m
Condition of data use
Cite the following paper.
[1] Naotake Yamamoto, Taichi Sasaki, Atsushi Yamamoto, Tetsuya Nishikawa, Kentaro Saito, Jun-ichi Takada, and Toshiyuki Maeyama，”920 MHz Path Loss Prediction Formula Based on FDTD Method for IoT Wireless System close to Ceiling with Concrete Beam,” IEICE Trans. Commun., Vol. E105-B, No. 12, Dec. 2022. Click hear to access data(To access data, you need passcode. Please contact to the committee secretary. The contact mail address is shown in the top-page of the database.)
