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Conference Paper
Delay Spread Model for Super Proximity Environments at 285 GHz Band
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- Authors
- Jong Ho Kim, Young-Keun Yoon, Jang Suk Choi
- Issue Date
- 2022-05
- Citation
- Global Symposium on Millimeter-Waves & Terahertz (GSMM) 2022, pp.188-189
- Language
- English
- Type
- Conference Paper
- Abstract
- ITU-R reported technical and operational characteristics of land-mobile service applications in the frequency range 275-450 ㎓ and one of services is a super proximity communication in-equipment. This paper proposes a delay spread model at 285 ㎓ band wireless communication for super proximity environments, between chips in a desktop-sized metal box. It models the delay properties due to many multiple reflections present inside the metal box. The measurement of delay spread characteristics were made at center frequency of 285 ㎓ and bandwidth of 20 ㎓ using a vector network analyzer, and horn antennas with a beam width of 60o. The two metal boxes, having different sizes each other were used as equipment environments. The distances between transmitter to receiver antenna were from 28 mm to 375 mm, and they were located with face-to-face or 90o bend. All cases were kept line-of-sight. The rms delay spread was got by measurement campaign, it was maximum 5.11 ns, minimum 0.19 ns, average 2.25 ns, and standard deviation 1.34 ns. It was represented as a simple equation with a function of path distance by multiple reflection.
- KSP Keywords
- 85 GHz, Beam width, Center frequency, Different sizes, Face-to-face, Frequency Range, GHz band, International telecommunications union radiocommunication(ITU-R), Line-Of-Sight(LOS), Measurement Campaign, Mobile services