Passive intermodulation (PIM) probe
US10429423B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Mar 1, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/50
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A PIM probe that includes a PIM antenna carried on a wand sized for positioning by hand. The PIM antenna is tuned by loop size to receive PIM corresponding to uplink reception channels of a site antenna generated by downlink broadcast frequencies F1 and F2 of the duplex antenna. The PIM antenna vanes may include conductors printed on a PC boards or wire loops. A PIM probe system includes a signal analyzer that displays a representation of PIM received by the PIM antenna. The PIM probe system further includes an RF filter for passing the PIM frequencies of interest and suppressing the test frequencies transmitted by the site antenna, such as a cellular base station antenna. When the site antenna is broadcasting the test frequencies, the technician places the PIM antenna in various locations to detect the presence of PIM in those locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.