Abstract:
A sensing system for physiology measurements comprises a transmission end including a measuring signal generating module having at least one overshoot and undershoot wave generating circuits and a transmitting antenna module having at least one transmitting antenna; a receiving end having a plurality of receiving antennae with each receiving antenna receiving a reflected signal reflected by a target object; and a plurality of signal analyzing modules to generate a plurality of object active state signals by analyzing the reflected signal from each receiving antenna and transmit the plurality of object active state signals to a digital signal processor. Wherein each overshoot and undershoot wave generating circuit generates a measuring signal with overshoot and undershoot waves according to an inputted Pulse Width Modulation signal, and each transmitting antenna emits the measuring signal to the target object.
Abstract:
An electronic device and a method for sensing an active state of an object are provided; the electronic device includes a signal generating module, a non-symmetric antenna module and a signal analyzing module. The signal generating module is configured to generate a pulse width modulation signal, generate a measuring signal with overshoot and undershoot pulses according to the pulse width modulation signal, and generate a reference signal according to the measuring signal. The non-symmetric antenna module includes a transmitting antenna and a receiving antenna. The transmitting antenna is configured to transmit the measuring signal to an object. The receiving antenna is configured to receive the measuring signal reflected by the object. The signal analyzing module is configured to receive and process the reference signal and the measuring signal reflected by the object, so as to obtain an object active state signal.
Abstract:
A dual frequency coupling feed antenna includes a substrate. There are an upper dipole radiative conductor, a lower dipole radiative conductor, a ground line and a ground reflective conductor disposed on the second surface of the substrate and the two dipole radiative conductors are not electrically connected to each other. The first surface of the substrate has a coupling conductor, a signal line and a feed-matching conductor. The coupling conductor extends parallel to the upper dipole radiative conductor. The ground reflective conductor is located at a side-edge of the dipole radiative conductor and the feed-matching conductor is located on the path of the signal line.
Abstract:
An electronic device and a method for sensing an active state of an object are provided; the electronic device includes a signal generating module, a non-symmetric antenna module and a signal analyzing module. The signal generating module is configured to generate a pulse width modulation signal, generate a measuring signal with overshoot and undershoot pulses according to the pulse width modulation signal, and generate a reference signal according to the measuring signal. The non-symmetric antenna module includes a transmitting antenna and a receiving antenna. The transmitting antenna is configured to transmit the measuring signal to an object. The receiving antenna is configured to receive the measuring signal reflected by the object. The signal analyzing module is configured to receive and process the reference signal and the measuring signal reflected by the object, so as to obtain an object active state signal.
Abstract:
A dual frequency coupling feed antenna includes a substrate. There are an upper dipole radiative conductor, a lower dipole radiative conductor, a ground line and a ground reflective conductor disposed on the second surface of the substrate and the two dipole radiative conductors are not electrically connected to each other. The first surface of the substrate has a coupling conductor, a signal line and a feed-matching conductor. The coupling conductor extends parallel to the upper dipole radiative conductor. The ground reflective conductor is located at a side-edge of the dipole radiative conductor and the feed-matching conductor is located on the path of the signal line.