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The occurrence of passive intermodulation and troubleshooting in Thailand mobile industry |
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| รหัสดีโอไอ | |
| Creator | Aditep Chaisang |
| Title | The occurrence of passive intermodulation and troubleshooting in Thailand mobile industry |
| Contributor | Sinchai Anantapreecha |
| Publisher | Nakhon Pathom Rajabhat University |
| Publication Year | 2562 |
| Journal Title | Interdisciplinary Research Review |
| Journal Vol. | 14 |
| Journal No. | 4 |
| Page no. | 55 |
| Keyword | Passive Intermodulation (PIM), impedance, linearity |
| URL Website | http://apps.npru.ac.th |
| Website title | สถาบันวิจัยและพัฒนา มหาวิทยาลัยราชภัฏนครปฐม |
| ISSN | 2697-522X |
| Abstract | This paper describes the problem of the passive intermodulation (PIM) in mobile communications. We focus on the problemoccured between the transmitter and antennas. The paper starts from the theory of intermodulation,mathematics concept ande ect in mobile channels. The problem occured when two or more signals frequencies are transmitted at the same time in thesame passive device. The non-linear behavior produced spurious signals where the frequencies were linear combinations of thefrequencies of the original signals. When PIM level occurred,we measured such level and find out the methods to reduce PIMlevel. Finally,we got some methods in reducing PIM level to meet IEC 62037 standard. |
