Wireless microphone comprising a plurality of antennas
One embodiment provides a wireless microphone comprising a microphone body a plurality of antennas positioned at different locations of the microphone body. Each of the plurality of antennas is configured to wirelessly transmit data. The wireless microphone further comprises a sensor configured to detect an object within proximity of an antenna of the plurality of antennas that obstructs the antenna, and a controller configured to switch antenna operation of the wireless microphone from the antenna to another antenna of the plurality of antennas in response to the object detected.
1. A wireless microphone, comprising:
a microphone body comprising:
a housing section including:
an interior space maintaining an electronics assembly of the wireless microphone;
an outer surface; and
a recess recessed in a part of the outer surface of the housing section; and
a first cover section, wherein the first cover section is a sleeve detachably coupled to the outer surface of the housing section to enclose the outer surface of the housing section;
a plurality of antennas positioned at different locations of the microphone body, wherein each of the plurality of antennas is configured to wirelessly transmit data, and at least one of the plurality of antennas is disposed inside the recess, such that the at least one antenna lies flush with one or more remaining parts of the outer surface of the housing section and is enclosed by the first cover section;
a sensor configured to detect an object within proximity of an antenna of the plurality of antennas that obstructs the antenna; and
a controller configured to switch antenna operation of the wireless microphone from the antenna to another antenna of the plurality of antennas in response to the object detected.
2. The wireless microphone of claim 1 , wherein the plurality of antennas comprises:
a first antenna positioned proximate to a bottom end of the microphone body; and
a second antenna disposed inside the recess, wherein the recess is proximate to a top end of the microphone body.
3. The wireless microphone of claim 2 , wherein:
the electronics assembly of the wireless microphone comprises one or more electronic components that enable operation of the wireless microphone; and
the first cover section is comprised of non-conductive material.
4. The wireless microphone of claim 3 , wherein the recess is etched into the part of the outer surface of the housing section.
5. The wireless microphone of claim 4 , wherein the second antenna comprises a flexible printed circuit board (PCB) including a planar array of microstrip antenna elements integrated in a ground plane, the flexible PCB is sized and shaped to fit inside the recess and match a curvature of the recess and an interior of the first cover section, the flexible PCB is wrapped around the part of the outer surface of the housing section, and the flexible PCB is sandwiched in between the interior of the first cover section and the outer surface of the housing section.
6. The wireless microphone of claim 4 , wherein the microphone body further comprises:
a second cover section of conductive material, wherein the second cover section detachably coupled to a bottom end of the outer surface of the housing section to enclose a part of the microphone body not enclosed by the first cover section, and the second cover section extends lengthwise beyond the housing section; and
a third cover section of non-conductive material, wherein the third cover section is detachably coupled to a bottom end of the second cover section, the third cover section forms the bottom end of the microphone body, and the first antenna is disposed inside the third cover section.
7. The wireless microphone of claim 2 , wherein the first antenna is a primary antenna for the wireless microphone, and the second antenna is a secondary antenna for the wireless microphone.
8. The wireless microphone of claim 1 , wherein the sensor comprises a touch sensor.
9. The wireless microphone of claim 1 , wherein the sensor comprises a proximity sensor.
10. The wireless microphone of claim 1 , wherein the controller is further configured to:
monitor performance of at least one antenna of the plurality of antennas based on: signal quality of a communication link with the at least one antenna, and sensor information captured by the sensor and indicative of an object within proximity of the at least one antenna that obstructs the at least one antenna; and
switch the antenna operation of the wireless microphone between the plurality of antennas based on the performance.
11. A wireless microphone system, comprising:
a microphone body comprising:
a housing section including:
an interior space maintaining an electronics assembly of the wireless microphone;
an outer surface; and
a recess recessed in a part of the outer surface of the housing section; and
a first cover section, wherein the first cover section is a sleeve to detachably coupled to the outer surface of the housing section to enclose the outer surface of the housing section;
a first antenna and a second antenna positioned at different locations of the microphone body, wherein the second antenna is disposed inside the recess, such that the second antenna lies flush with one or more remaining parts of the outer surface of the housing section and is enclosed by the first cover section;
a sensor configured to capture sensor information indicative of an object within proximity of an antenna of the wireless microphone system that obstructs the antenna; and
a controller configured to switch antenna operation of the wireless microphone system between the first antenna and the second antenna based on the sensor information;
wherein each antenna of the wireless microphone system is configured to wirelessly transmit data.
12. The wireless microphone system of claim 11 , wherein the first antenna is positioned proximate to a bottom end of the microphone body, and the recess is proximate to a top end of the microphone body.
13. The wireless microphone system of claim 11 , wherein:
the electronics assembly of the wireless microphone comprises one or more electronic components that enable operation of the wireless microphone system; and
the first cover section is comprised of non-conductive material.
14. The wireless microphone system of claim 13 , wherein the recess is etched into the part of the outer surface of the housing section.
15. The wireless microphone system of claim 14 , wherein the second antenna comprises a flexible printed circuit board (PCB) including a planar array of microstrip antenna elements integrated in a ground plane, the flexible PCB is sized and shaped to fit inside the recess and match a curvature of the recess and an interior of the first cover section, the flexible PCB is wrapped around the part of the outer surface of the housing section, and the flexible PCB is sandwiched in between the interior of the first cover section and the outer surface of the housing section.
16. The wireless microphone system of claim 14 , wherein the microphone body further comprises:
a second cover section of conductive material, wherein the second cover section detachably coupled to a bottom end of the outer surface of the housing section to enclose a part of the microphone body not enclosed by the first cover section, and the second cover section extends lengthwise beyond the housing section; and
a third cover section of non-conductive material, wherein the third cover section is detachably coupled to a bottom end of the second cover section, the third cover section forms the bottom end of the microphone body, and the first antenna is disposed inside the third cover section.
17. The wireless microphone system of claim 11 , wherein the sensor comprises a touch sensor.
18. The wireless microphone system of claim 11 , wherein the sensor comprises a proximity sensor.
19. The wireless microphone system of claim 11 , wherein the controller is further configured to:
monitor performance of at least one antenna of the first antenna and the second antenna based on: signal quality of a communication link with the at least one antenna, and sensor information captured by the sensor and indicative of an object within proximity of the at least one antenna that obstructs the at least one antenna; and
switch the antenna operation of the wireless microphone between the first antenna and the second antenna based on the performance.
20. A method, comprising:
detecting, via a sensor, an object within proximity of a first antenna of a wireless microphone that obstructs the first antenna; and
switching antenna operation of the wireless microphone from the first antenna to a second antenna of the wireless microphone in response to the object detected;
wherein the wireless microphone comprises a microphone body comprising:
a housing section including:
an interior space maintaining an electronics assembly of the wireless microphone;
an outer surface; and
a recess recessed in a part of the outer surface of the housing section; and
a first cover section, wherein the first cover section is a sleeve to-detachably coupled to the outer surface of the housing section to enclose the outer surface of the housing section; and
wherein the first antenna and the second antenna are positioned at different locations of the wireless microphone, and the second antenna is disposed inside the recess, such that the second antenna lies flush with one or more remaining parts of the outer surface of the housing section and is enclosed by the first cover section.