Aspects of this disclosure relate to bulk acoustic wave resonators. A bulk acoustic wave resonator includes a patterned mass loading layer that affects a resonant frequency of the bulk acoustic wave resonator. The patterned mass loading layer can have a duty factor in a range from 0.2 to 0.8 in a main acoustically active region of the bulk acoustic wave resonator. Related filters, acoustic wave dies, radio frequency modules, wireless communications devices, and methods are disclosed.

Aspects of this disclosure relate to bulk acoustic wave resonators. A bulk acoustic wave resonator includes a patterned mass loading layer that affects a resonant frequency of the bulk acoustic wave resonator. The patterned mass loading layer can have a duty factor in a range from 0.2 to 0.8 in a main acoustically active region of the bulk acoustic wave resonator. Related filters, acoustic wave dies, radio frequency modules, wireless communications devices, and methods are disclosed.

Techniques and architecture are disclosed for a method for making a custom circuit comprising forming a common wafer template, selecting at least two elements of the common wafer template to be chosen elements, and adding at least one metal layer to interconnect the chosen elements to form a circuit. The common wafer template includes a plurality of transistors, a plurality of resistors, a plurality of capacitors, and a plurality of bond pads. Final circuit customization of the common wafer template is accomplished by adding at least one metal layer that forms interconnects to passive and active elements in the template in order to complete the circuit.

Techniques and architecture are disclosed for a method for making a custom circuit comprising forming a common wafer template, selecting at least two elements of the common wafer template to be chosen elements, and adding at least one metal layer to interconnect the chosen elements to form a circuit. The common wafer template includes a plurality of transistors, a plurality of resistors, a plurality of capacitors, and a plurality of bond pads. Final circuit customization of the common wafer template is accomplished by adding at least one metal layer that forms interconnects to passive and active elements in the template in order to complete the circuit.

A conversion adapter is provided that includes a radio communication unit that receives biological information based on digital data transmitted from an external biological sensor by radio communication; a converter that converts the biological information based on the digital data received by the radio communication unit to biological information based on analog data; a connection unit that is connectable through wire to an external biological information monitor and that outputs the biological information based on the analog data converted by the converter; a power supply unit that supplies power to the radio communication unit and the converter; an operation input that receives operation performed by a user; and a body part provided with the connection unit and the operation part.

A conversion adapter is provided that includes a radio communication unit that receives biological information based on digital data transmitted from an external biological sensor by radio communication; a converter that converts the biological information based on the digital data received by the radio communication unit to biological information based on analog data; a connection unit that is connectable through wire to an external biological information monitor and that outputs the biological information based on the analog data converted by the converter; a power supply unit that supplies power to the radio communication unit and the converter; an operation input that receives operation performed by a user; and a body part provided with the connection unit and the operation part.

Apparatus for transmitting and/or receiving radio frequency, RF, signals, particularly for a mobile radio device for a wireless communications system, particularly a cellular communications system, said apparatus comprising a primary antenna module having a first radiation pattern, at least one secondary antenna module having a second radiation pattern, which is different from said first radiation pattern, and a control unit configured to selectively activate and/or deactivate said primary antenna module and/or said at least one secondary antenna module.

The present disclosure relates to an adaptive antenna radome heating system (200, 300, 400) for a point to point radio link, where the adaptive antenna radome heating system comprises a processing unit (150, 220, 420) and at least one point to point radio link transceiver (TRX) (111, 121; 210A, 210B, 210C). Each TRX comprises an antenna radome (110, 120) having an antenna radome heating device (140, 141) configured to be activated by a control signal (R1, R2, RN). The processing unit (150, 220, 420) is arranged to determine an onset of accumulated precipitation on the antenna radome of the at least one TRX (111, 121; 210A, 210B, 210C) and to activate the corresponding antenna radome heating device (140, 141) by the control signal (R1, R2, RN) in response to determining the onset of accumulated precipitation.

The present disclosure relates to an adaptive antenna radome heating system (200, 300, 400) for a point to point radio link, where the adaptive antenna radome heating system comprises a processing unit (150, 220, 420) and at least one point to point radio link transceiver (TRX) (111, 121; 210A, 210B, 210C). Each TRX comprises an antenna radome (110, 120) having an antenna radome heating device (140, 141) configured to be activated by a control signal (R1, R2, RN). The processing unit (150, 220, 420) is arranged to determine an onset of accumulated precipitation on the antenna radome of the at least one TRX (111, 121; 210A, 210B, 210C) and to activate the corresponding antenna radome heating device (140, 141) by the control signal (R1, R2, RN) in response to determining the onset of accumulated precipitation.

Systems, devices, and methods related to interpolation are provided. An example apparatus includes a slope calculator to calculate a slope value based on a first value and a second value associated with a function. The apparatus further includes a compander to compand the slope value to provide a companded slope value having a smaller bit-width than the calculated slope value. The apparatus further includes a multiplier to multiply the companded slope value by a third value to provide a correction value. The apparatus further includes an adder to add the correction value to the first value or the second value to provide an interpolated value associated with the function. Companding the slope value can reduce a bit-width of the multiplier, and thus may reduce power consumption and/or area.