The disclosure relates to a function module for an electronic access control to a housing in electrical equipment. Electronic built-in modules are arranged in the housing. At least one of the built-in modules is connected to a data bus, wherein the built-in module is accessible via an interface and the data bus for the exchange of data. A switchable blocking module is provided according to the invention between the interface and the data bus, wherein the blocking module in a disable state restricts or interrupts the data traffic on the data bus at least for a data exchange between the interface and the built-in module, and in an enable state enables the data bus for an unrestricted exchange of data between the interface and the built-in module.

Computer modules that can have a high-capacity, can simplify the design of a computer system housing the modules, can utilize system resources in a highly configurable manner, can provide a variety of functionality, and can be readily inserted into, and removed from, a computer system.

An antenna structure includes a conductive housing and a feed element. The conductive housing includes an open slot. The feed element includes a substrate, a grounding portion, a shorting portion, a first feeding portion and a second feeding portion. The grounding portion and the shorting portion are connected with the conductive housing. The first feeding portion has a feeding point and is connected with the conductive housing via the shorting portion. The orthographic projections of the first and second feeding portions are within the open slot, and the orthographic projections of the grounding portion and the shorting portion are located at two sides of the open slot, respectively. The antenna structure operates at a first frequency band via a first path formed by the open slot, and operates at a second frequency band via a second path formed by the first and second feeding portions.

The disclosure relates to a function module for an electronic access control to a housing in electrical equipment. Electronic built-in modules are arranged in the housing. At least one of the built-in modules is connected to a data bus, wherein the built-in module is accessible via an interface and the data bus for the exchange of data. A switchable blocking module is provided according to the invention between the interface and the data bus, wherein the blocking module in a disable state restricts or interrupts the data traffic on the data bus at least for a data exchange between the interface and the built-in module, and in an enable state enables the data bus for an unrestricted exchange of data between the interface and the built-in module.

Computer modules that can have a high-capacity, can simplify the design of a computer system housing the modules, can utilize system resources in a highly configurable manner, can provide a variety of functionality, and can be readily inserted into, and removed from, a computer system.

According to an embodiment of the disclosure, an electronic device may include: a housing, a printed circuit board disposed in the housing, the printed circuit board including a wireless communication module comprising communication circuitry, a radio frequency switch, a first electronic component comprising circuitry, and a second electronic component, comprising circuitry, electrically connected to the radio frequency switch, and a shield can disposed on the printed circuit board to cover at least a partial area of the printed circuit board and including multiple pads in contact with the printed circuit board, and an antenna module, comprising at least one antenna, configured to transmit and/or receive signals and/or power between external electronic devices using at least part of the housing and at least part of the shield can, wherein the multiple pads include a first pad electrically connected to the radio frequency switch and a second pad electrically connected to the first electronic component, the multiple pads are configured to be electrically isolated from the printed circuit board, and the radio frequency switch is configured to select one of a first path configured to cause the antenna module to have a first radiation efficiency based on a signal of a first frequency band provided from the wireless communication module being applied to the first path, and a second path configured to cause the antenna module to have a second radiation efficiency different from the first radiation efficiency based on a signal of the first frequency band being applied to the second path, and is connected to the second electrical component.

An antenna structure includes a conductive housing and a feed element. The conductive housing includes an open slot. The feed element includes a substrate, a grounding portion, a shorting portion, a first feeding portion and a second feeding portion. The grounding portion and the shorting portion are connected with the conductive housing. The first feeding portion has a feeding point and is connected with the conductive housing via the shorting portion. The orthographic projections of the first and second feeding portions are within the open slot, and the orthographic projections of the grounding portion and the shorting portion are located at two sides of the open slot, respectively. The antenna structure operates at a first frequency band via a first path formed by the open slot, and operates at a second frequency band via a second path formed by the first and second feeding portions.