5.1-7.1GHz Wi-Fi6E coexistence acoustic wave resonator RF diplexer circuit

An RF diplexer device, the device comprising:

• a first input inductor;
• a first filter circuit coupled to the first input inductor, the first filter circuit configured to receive a first input signal over the first input inductor and to produce a first filtered signal;
• a second input inductor;
• a second filter circuit coupled to the second input inductor, the second filter circuit configured to receive a second input signal over the second input inductor and to produce a second filtered signal;
• wherein each of the first and second filter circuits comprises a plurality of series resonators and a plurality of shunt resonators;
• wherein each of the plurality of series resonators comprises
• a substrate member having a cavity region and an upper surface region contiguous with an opening of the cavity region,
• a bottom electrode within a portion of the cavity region, a piezoelectric material overlying the upper surface region and the bottom electrode,
• a top electrode overlying the piezoelectric material and overlying the bottom electrode, and
• an insulating material overlying the top electrode;
• wherein the first filter circuit has a first circuit response configured from the serial configuration of the first filter circuit and the parallel configuration of the first filter circuit to achieve a first transmission loss from a first pass band having a first characteristic frequency centered around 5.4925 GHz and having a bandwidth from 5.150 GHz to 5.835 GHz;
• and
• wherein the second filter circuit has a second circuit response configured from the serial configuration of the second filter circuit and the parallel configuration of the second filter circuit to achieve a second transmission loss from a second pass band having a second characteristic frequency centered around 6.535 GHz and having a bandwidth from 5.945 GHz to 7.125 GHz
• a first output inductor coupled to the first filter circuit;
• a second output inductor coupled to the second filter circuit;
• and
• a third output inductor coupled to the first and second output inductors;
• wherein the third output inductor is configured to receive the first filtered signal over the first output inductor and to receive the second filtered signal over the second output inductor;
• and
• wherein, for each of the first and second filter circuits, the plurality of series resonators is configured in the serial configuration and the plurality of shunt resonators is configured in the parallel configuration, the serial configuration and the parallel configuration being configured as a ladder configuration.

An RF diplexer device, the device comprising:

• a first input inductor;
• a first filter circuit coupled to the first input inductor, the first filter circuit configured to receive a first input signal over the first input inductor and to produce a first filtered signal;
• a second input inductor;
• a second filter circuit coupled to the second input inductor, the second filter circuit configured to receive a second input signal over the second input inductor and to produce a second filtered signal;
• wherein each of the first and second filter circuits comprises a plurality of series resonators and a plurality of shunt resonators;
• wherein each of the plurality of series resonators comprises
• a substrate member having a cavity region and an upper surface region contiguous with an opening of the cavity region,
• a bottom electrode within a portion of the cavity region,
• a piezoelectric material overlying the upper surface region and the bottom electrode, and
• a top electrode overlying the piezoelectric material and overlying the bottom electrode, and
• an insulating material overlying the top electrode;
• wherein the first filler circuit has a first circuit response configured from the serial configuration of the first filter circuit and the parallel configuration of the first filter circuit to achieve a first transmission loss from a first pass band having a first characteristic frequency centered around 5.4925 GHZ and having a bandwidth from 5.150 GHz to 5.835 GHz;
• and
• wherein the second filter circuit has a second circuit response configured from the serial configuration of the second filter circuit a e parallel configuration of the second filter circuit to achieve a second transmission loss from a second pass band having a second characteristic frequency centered around 6.535 GHz and having bandwidth from 5.945 GHz to 7.125 GHZ
• a first output in or coupled to the first filter circuit;
• a second out inductor coupled to the second filter circuit;
• and
• a third output inductor coupled to the first and second output inductors;
• wherein the third output inductor is configured to receive the first filtered signal over the first output inductor and to receive the second filtered signal over the second output inductor;
• and
• wherein, for each of the first and second filter circuits, the plurality of series resonators comprises a first plurality of series resonators and a second plurality of series resonators, the first plurality of series resonators being configured in a first serial configuration and the second plurality of series resonators being configured in a second serial configuration;
• and
• wherein, for each of the first and second filter circuits, the plurality of shunt resonators comprises a plurality of shunt resonator pairs in a lattice configuration, each of the plurality of shunt resonator pairs being cross-coupled between one of the first plurality of series resonators and one of the second plurality of series resonators.

An RF diplexer device, the device comprising:

• a first filter circuit configured to receive a first input signal and to produce a first filtered signal;
• a second filter circuit configured to receive a second input signal and to produce a second filtered signal;
• wherein each of the first and second filter circuits comprises a plurality of series resonators and a plurality of shunt resonators;
• wherein each of the plurality of series resonators comprises
• a substrate member having a cavity region and an upper surface region contiguous with an opening of the cavity region,
• a bottom electrode within a portion of the cavity region,
• a piezoelectric material overlying the upper surface region and the bottom electrode,
• a top electrode overlying the piezoelectric material and overlying the bottom electrode, and
• an insulating material overlying the top electrode;
• wherein the first filter circuit has a first circuit response configured from the serial configuration of the first filter circuit and the parallel configuration of the first filter circuit to achieve a first transmission loss from a first pass band having a first characteristic frequency centered around 5.5225 GHz and having a bandwidth from 5.150 GHz to 5.895 GHz;
• and
• wherein the second filter circuit has a second circuit response configured from the serial configuration of the second filter circuit and the parallel configuration of the second filter circuit to achieve a second transmission loss from a second pass band having a second characteristic frequency centered around 6.615 GHz and having a bandwidth from 6.105 GHz to 7.125 GHZ;
• and
• a multiplexer coupled to the first filter circuit and the second filter circuit and configured to select between the first filtered signal and the second filtered signal;
• wherein the first filter circuit comprises a maximum insertion loss of 2.5 dB within the first pass band, a maximum amplitude variation characterizing the pass-band of 1.2 dB, and a minimum return loss characterizing the pass-band of 12 dB;
• and
• wherein the second filter circuit comprises a maximum insertion loss of 2.5 dB within the second pass band, a maximum amplitude variation characterizing the pass-band of 1.2 dB, and a minimum return loss characterizing the pass-band of 12 dB;
• and
• wherein the RF diplexer device has an operating temperature ranging from −40 Degrees Celsius to 85 Degrees Celsius, a microwave characteristic impedance of 50 Ohms, a maximum power handling capability within the pass-band of +30 dBm or 1 Watt.

An RF diplexer device, the device comprising:

• a first input inductor;
• a first filter circuit coupled to the first input inductor, the first filter circuit configured to receive a first input signal over the first input inductor and to produce a first filtered signal;
• a second input inductor;
• a second filter circuit coupled to the second input inductor, the second filter circuit configured to receive a second input signal over the second input inductor and to produce a second filtered signal;
• wherein each of the first and second filter circuits comprises a plurality of series resonators and a plurality of shunt resonators;
• wherein each of the plurality of series resonators comprises
• a substrate member having a cavity region and an upper surface region contiguous with an opening of the cavity region,
• a bottom electrode within a portion of the cavity region,
• a piezoelectric material overlying the upper surface region and the bottom electrode,
• a top electrode overlying the piezoelectric material and overlying the bottom electrode, and
• an insulating material overlying the top electrode;
• wherein the first filter circuit has a first circuit response configured from the serial configuration of the first filter circuit and the parallel configuration of the first filter circuit to achieve a first transmission loss from a first pass band having a first characteristic frequency centered around 5.5225 GHz and having a bandwidth from 5.150 GHz to 5.895 GHz;
• and
• wherein the second filter circuit has a second circuit response configured from the serial configuration of the second filter circuit and the parallel configuration of the second filter circuit to achieve a second transmission loss from a second pass band having a second characteristic frequency centered around 6.615 GHz and having a bandwidth from 6.105 GHz to 7.125 GHZ;
• a first output inductor coupled to the first filter circuit;
• a second output inductor coupled to the second filter circuit;
• and
• a third output inductor coupled to the first and second output inductors;
• wherein the third output inductor is configured to receive the first filtered signal over the first output inductor and to receive the second filtered signal over the second output inductor,
• wherein, for each of the first and second filter circuits, the plurality of series resonators is configured in the serial configuration and the plurality of shunt resonators is configured in the parallel configuration, the serial configuration and the parallel configuration being configured as a ladder configuration.

An RF diplexer device, the device comprising:

• a first input inductor;
• a first filter circuit coupled to the first input inductor, the first filter circuit configured to receive a first input signal over the first input inductor and to produce a first filtered signal;
• a second input inductor;
• a second filter circuit coupled to the second input inductor, the second filter circuit configured to receive a second input signal over the second input inductor and to produce a second filtered signal;
• wherein each of the first and second filter circuits comprises a plurality of series resonators and a plurality of shunt resonators;
• wherein each of the plurality of series resonators comprises
• a substrate member having a cavity region and an upper surface region contiguous with an opening of the cavity region,
• a bottom electrode within a portion of the cavity region,
• a piezoelectric material overlying the upper surface region and the bottom electrode, and
• a top electrode overlying the piezoelectric material and overlying the bottom electrode, and
• an insulating material overlying the top electrode,
• wherein the first filler circuit has a first circuit response configured from the serial configuration of the first filter circuit and the parallel configuration of the first filter circuit to achieve a first transmission loss from a first pass band having a first characteristic frequency centered around 5.5225 GHZ and having a bandwidth from 5.150 GHz to 5.895 GHz;
• and
• wherein the second filter circuit has a second circuit response configured from the serial configuration of the second filter circuit a e parallel configuration of the second filter circuit to achieve a second transmission loss from a second pass band having a second characteristic frequency centered around 6.615 GHz and having bandwidth from 6.105 GHz to 7.125 GHZ;
• a first output in or coupled to the first filter circuit;
• a second out inductor coupled to the second filter circuit;
• and
• a third output inductor coupled to the first and second output inductors;
• wherein the third output inductor is configured to receive the first filtered signal over the first output inductor and to receive the second filtered signal over the second output inductor;
• wherein, for each of the first and second filter circuits, the plurality of series resonators comprises a first plurality of series resonators and a second plurality of series resonators, the first plurality of series resonators being configured in a first serial configuration and the second plurality of series resonators being configured in a second serial configuration;
• and
• wherein, for each of the first and second filter circuits, the plurality of shunt resonators comprises a plurality of shunt resonator pairs in a lattice configuration, each of the plurality of shunt resonator pairs being cross-coupled between one of the first plurality of series resonators and one of the second plurality of series resonators.