Circuit arrangement for use in mobile communication technology for switching matrix-shaped switches, has switches, where magnetic force for actuating switches is produced by applying current to terminals and by adding fields of coils

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The invention is a circuit arrangement for controlling an array of switches, which are organized in rows and columns (matrix-shaped). Each switch can be actuated (turned on or off) by generating magnetic force, which is achieved by passing an electric current through dedicated coils associated with each row and column. The system allows precise control by combining the magnetic fields from the relevant coils, enabling individual switching within the matrix.

Use CasesContent extracted from patent full text and abstract with AI.

• Switching elements in mobile communication devices
• Reconfigurable antennas and multiplexers
• Matrix/keypad input systems for electronics
• Switching arrays in testing or routing equipment
• Automated testing systems for circuit boards

BenefitsContent extracted from patent full text and abstract with AI.

• Enables precise and selective control of individual switches in a matrix setup
• Reduces the number of required control lines compared to individually wired switches
• Facilitates compact and scalable switching solutions for large arrays
• Can improve reliability and longevity by using magnetically actuated, contact-based switching
• Suitable for miniaturized mobile communication devices due to efficient design

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Patent Abstract

The arrangement has an array of switches (20), which is arranged in rows and columns. Each switch exhibits a prestress moveable contact and a fixed contact, and a coil arrangement is assigned to each switch. Coils (1) with electrical drive terminals (16, 17) are associated with each column and each row of the switches in planes, respectively. Magnetic force required for actuating the switches is produced by applying current to the terminals of the respective rows and the respective columns and by adding magnetic fields of the coils. An independent claim is also included for a method for switching matrix-shaped switches arranged in rows and columns.