H04B15/02

Method for mitigating passive intermodulation using roofing material with polymeric and metal layers

Materials and methods for mitigating passive intermodulation. A membrane for reducing passive intermodulation includes a first polymeric layer, a second polymeric layer, and a continuous metal layer encapsulated between the first and second polymeric layers. A self-adhesive radio frequency barrier tape includes a waterproof polymeric top layer, a metal-containing layer adhered by an adhesive layer to the polymeric top layer, a pressure sensitive adhesive layer adhered to the metal-containing layer, and a release liner on a bottom surface of the pressure sensitive adhesive layer. A method of mitigating passive intermodulation includes passing a probe over an area of interest, the probe being sensitive to an intermodulation frequency of interest, and identifying a suspected source of passive intermodulation when the amplitude of the probe output exceeds a threshold at the frequency of interest. The method further includes covering the suspected passive intermodulation source with a radio frequency barrier material.

Point of sale device and method for operating same

A point of sale device including an LCD display, a contactless payment antenna arranged in propinquity to the LCD display, LCD control circuitry and contactless communication circuitry associated with the contactless payment antenna, the LCD control circuitry and the contactless communication circuitry operating at least partially in time coordination with each other in order to prevent interference therebetween.

Point of sale device and method for operating same

A point of sale device including an LCD display, a contactless payment antenna arranged in propinquity to the LCD display, LCD control circuitry and contactless communication circuitry associated with the contactless payment antenna, the LCD control circuitry and the contactless communication circuitry operating at least partially in time coordination with each other in order to prevent interference therebetween.

Remote communication and powered sensing/control/identification devices using high temperature compatible semiconductor materials

A system includes a network of a plurality of sensing/control/identification devices distributed throughout a machine, each of the sensing/control/identification devices associated with at least one sub-system component of the machine and operable to communicate through a plurality of electromagnetic signals. Shielding surrounds at least one of the sensing/control/identification devices to contain the electromagnetic signals proximate to the at least one sub-system component. A communication path is integrally formed in a component of the machine to route a portion of the electromagnetic signals through the component and a remote processing unit operable to communicate with the network of the sensing/control/identification devices through the electromagnetic signals, wherein at least a portion of the sensing/control/identification devices comprise a wide band gap semiconductor device and wherein at least a portion of the sensing/control/identification devices comprise an on-chip antenna.

Remote communication and powered sensing/control/identification devices using high temperature compatible semiconductor materials

A system includes a network of a plurality of sensing/control/identification devices distributed throughout a machine, each of the sensing/control/identification devices associated with at least one sub-system component of the machine and operable to communicate through a plurality of electromagnetic signals. Shielding surrounds at least one of the sensing/control/identification devices to contain the electromagnetic signals proximate to the at least one sub-system component. A communication path is integrally formed in a component of the machine to route a portion of the electromagnetic signals through the component and a remote processing unit operable to communicate with the network of the sensing/control/identification devices through the electromagnetic signals, wherein at least a portion of the sensing/control/identification devices comprise a wide band gap semiconductor device and wherein at least a portion of the sensing/control/identification devices comprise an on-chip antenna.

Method for Electromagnetic Interference Control, Electronic Device, and Storage Medium
20210250104 · 2021-08-12 ·

A method for electromagnetic interference control, an electronic device, and a storage medium are provided. A target operating frequency of a modem is obtained, in condition of a display screen being in a screen-on state, in response to an electronic device being in a call state. A first mobile industry processor interface (MIPI) operating frequency of an MIPI of the display screen is obtained. A second MIPI operating frequency corresponding to the call state is determined in response to determining the target operating frequency being interfered based on the first MIPI operating frequency. An MIPI operating frequency of the display screen is adjusted to the second MIPI operating frequency.

Method for Electromagnetic Interference Control, Electronic Device, and Storage Medium
20210250104 · 2021-08-12 ·

A method for electromagnetic interference control, an electronic device, and a storage medium are provided. A target operating frequency of a modem is obtained, in condition of a display screen being in a screen-on state, in response to an electronic device being in a call state. A first mobile industry processor interface (MIPI) operating frequency of an MIPI of the display screen is obtained. A second MIPI operating frequency corresponding to the call state is determined in response to determining the target operating frequency being interfered based on the first MIPI operating frequency. An MIPI operating frequency of the display screen is adjusted to the second MIPI operating frequency.

Method for Electromagnetic Interference Control and Related Devices
20210258083 · 2021-08-19 ·

A method for electromagnetic interference control and related devices are provided. The method includes the following. In response to detecting that an electronic device is in a preset scene, electromagnetic interference between a radio frequency system and a display screen of the electronic device is detected, where the preset scene includes a game scene. In response to the detected electromagnetic interference, a real-time requirement of the preset scene is determined. An interference control strategy adapted to the real-time requirement of the preset scene is obtained. Electromagnetic interference of a mobile industry processor interface (MIPI) of the display screen to the radio frequency system is reduced or eliminated based on the interference control strategy.

Method for Electromagnetic Interference Control and Related Devices
20210258083 · 2021-08-19 ·

A method for electromagnetic interference control and related devices are provided. The method includes the following. In response to detecting that an electronic device is in a preset scene, electromagnetic interference between a radio frequency system and a display screen of the electronic device is detected, where the preset scene includes a game scene. In response to the detected electromagnetic interference, a real-time requirement of the preset scene is determined. An interference control strategy adapted to the real-time requirement of the preset scene is obtained. Electromagnetic interference of a mobile industry processor interface (MIPI) of the display screen to the radio frequency system is reduced or eliminated based on the interference control strategy.

EMC cooling device

The present disclosure relates to a cooling apparatus (1) comprising a metal and/or electrically conductive EMC enclosure (2) and a converter (E.sub.1) and also a plurality of electrically operated units (E.sub.2, . . . , E.sub.n) within the EMC enclosure (2) which are designed to influence a local temperature in at least one region (30, 31) inside or outside the EMC enclosure (2), wherein the converter (E.sub.1) directly supplies at least one or more of the units (E.sub.2, . . . , E.sub.n) with a respective supply voltage, and wherein the converter (E.sub.1) and the units (E.sub.2, . . . , E.sub.n) are each designed such that the line-bound and/or field-bound interference (S.sub.xy) which is specifically generated by this unit during operation of the cooling apparatus (1) is compensated for by a line-bound and/or field-bound interference (S.sub.xy) of at least one of the respectively other units (E.sub.1, . . . , E.sub.n) partially or completely in terms of its respective interference level (P.sub.n).