Abstract: A wireless signal repeater includes an interior antenna located in an interior a cooking appliance, and an exterior antenna located outside the cooking appliance. A coupling portion connects the interior antenna to the exterior antenna through a hole in a wall of the cooking appliance for wirelessly retransmitting wireless signals received by the wireless signal repeater. According to another aspect, a cooking appliance includes a cooking chamber for cooking food, and an interior antenna located inside the cooking chamber. An exterior antenna is located on an exterior of the cooking appliance, and a coupling portion is configured to connect the interior antenna with the exterior antenna. According to another aspect, an aperture is located in a cooking chamber and a reflector is mounted over the aperture on an exterior of the cooking appliance and is configured to narrow a radiation pattern for wireless signals transmitted through the aperture.

Abstract: A dual-band antenna includes a first conducting path, a filter and a second conducting path. A first end of the first conducting path is connected with an antenna feed port. A first end of the filter is connected with a second end of the first conducting path. A first end of the second conducting path is connected with a second end of the filter.

Abstract: A dual-band antenna includes a first conducting path, a filter and a second conducting path. A first end of the first conducting path is connected with an antenna feed port. A first end of the filter is connected with a second end of the first conducting path. A first end of the second conducting path is connected with a second end of the filter.

Abstract: A diplexer has a first terminal, a second terminal and a third terminal. The diplexer includes a first filter and a second filter. The first filter is connected between the first terminal and the third terminal. A first band signal is operated in a first frequency band and transmitted through a first path between the first terminal and the third terminal. The second filter is connected between the second terminal and the third terminal. A second band signal is operated in a second frequency band and transmitted through a second path between the second terminal and the third terminal. The first filter is a first band-rejection filter for stopping the second band signal.

Abstract: A wireless signal repeater includes an interior antenna located in an interior a cooking appliance, and an exterior antenna located outside the cooking appliance. A coupling portion connects the interior antenna to the exterior antenna through a hole in a wall of the cooking appliance for wirelessly retransmitting wireless signals received by the wireless signal repeater. According to another aspect, a cooking appliance includes a cooking chamber for cooking food, and an interior antenna located inside the cooking chamber. An exterior antenna is located on an exterior of the cooking appliance, and a coupling portion is configured to connect the interior antenna with the exterior antenna. According to another aspect, an aperture is located in a cooking chamber and a reflector is mounted over the aperture on an exterior of the cooking appliance and is configured to narrow a radiation pattern for wireless signals transmitted through the aperture.

Abstract: A wireless mobile device using a battery as an antenna is provided. The wireless mobile device includes a battery, a system circuit, a RF choke and a DC blocker. The battery has a positive terminal and a negative terminal. The system circuit has a voltage terminal and a RF terminal. The RF choke is connected between the positive terminal of the battery and the voltage terminal of the system circuit. The DC blocker is connected between the positive terminal of the battery and the RF terminal of the system circuit.

Abstract: A wireless mobile device using a battery as an antenna is provided. The wireless mobile device includes a battery, a system circuit, a RF choke and a DC blocker. The battery has a positive terminal and a negative terminal. The system circuit has a voltage terminal and a RF terminal. The RF choke is connected between the positive terminal of the battery and the voltage terminal of the system circuit. The DC blocker is connected between the positive terminal of the battery and the RF terminal of the system circuit.

Abstract: An active antenna system includes a printed circuit board, an antenna radiation element, a metal ground surface, and a first switching circuit. The printed circuit board has an antenna clearance region. The antenna radiation element has a feed port, a first physical position and a second physical position. The metal ground surface is formed on a first layer of the printed circuit board and outside the antenna clearance region. A first terminal of the first switching circuit is connected to the first physical position. A second terminal of the first switching circuit is connected to the second physical position. A control terminal of the first switching circuit receives a control signal. The first physical position and the second physical position are selectively connected with each other or disconnected from each other according to the control signal.

Abstract: An active antenna system with multiple feed ports and a control method of the active antenna system are provided. The active antenna system includes an antenna radiation element, a first feed port and a second feed port. If the first control circuit is in a close state, the first feed port and a first physical position of the antenna radiation element are connected with each other, so that a signal is fed to the antenna radiation element through the first feed port and the first physical position. If the second control circuit is in the close state, the second feed port and a second physical position of the antenna radiation element are connected with each other, so that the signal is fed to the antenna radiation element through the second feed port and the second physical position.

Abstract: An antenna module is provided. The antenna module includes a first slot antenna unit and a second slot antenna unit. The first slot antenna unit is coupled to a radio frequency (RF) unit. The second slot antenna unit is coupled to the RF unit. The first and second slot antenna units are embedded in a wireless communications dongle, and the wireless communications dongle operates as a modem to transmit or receive a wireless signal to or from a wireless telephony communications network for a computer via the first and second slot antenna units when the wireless communication dongle connects to the computer.

Abstract: A meander slot antenna structure for transmitting a wireless signal is provided. The meander slot antenna structure includes a substrate, a ground element, a feed conductor and a couple conductor. The substrate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. The ground element is disposed on the second surface, wherein a meander slot is formed in the ground element. The feed conductor is disposed on the first surface, wherein the feed conductor corresponds to the meander slot. The couple conductor is disposed on the first surface and coupled with the feed conductor, wherein a via passes through the substrate and electrically connects the couple conductor to the ground element.

Abstract: An exemplary wireless communication apparatus includes a first communication circuit, a second communication circuit, an antenna, and a combiner. The first communication circuit is arranged to process signals according to a first wireless communication protocol working at a first frequency band. The second communication circuit is arranged to process signals according to a second wireless communication protocol working at a first frequency band, wherein the second wireless communication protocol is different from the first wireless communication protocol. The antenna is shared between the first communication circuit and the second communication circuit. The combiner has a first port coupled to the first communication circuit, a second port coupled to the second communication circuit, and a third port coupled to the antenna. In addition, the combiner provides a first signal path between the third port and the first port and a second signal path between the third port and the second port.

Abstract: An antenna module is provided. The antenna module includes a first slot antenna unit and a second slot antenna unit. The first slot antenna unit is coupled to a radio frequency (RF) unit. The second slot antenna unit is coupled to the RF unit. The first and second slot antenna units are embedded in a wireless communications dongle, and the wireless communications dongle operates as a modem to transmit or receive a wireless signal to or from a wireless telephony communications network for a computer via the first and second slot antenna units when the wireless communication dongle connects to the computer.

Abstract: A meander slot antenna structure for transmitting a wireless signal is provided. The meander slot antenna structure includes a substrate, a ground element, a feed conductor and a couple conductor. The substrate includes a first surface and a second surface, wherein the first surface is opposite to the second surface. The ground element is disposed on the second surface, wherein a meander slot is formed in the ground element. The feed conductor is disposed on the first surface, wherein the feed conductor corresponds to the meander slot. The couple conductor is disposed on the first surface and coupled with the feed conductor, wherein a via passes through the substrate and electrically connects the couple conductor to the ground element.

Abstract: An exemplary wireless communication apparatus includes a first communication circuit, a second communication circuit, an antenna, and a combiner. The first communication circuit is arranged to process signals according to a first wireless communication protocol working at a first frequency band. The second communication circuit is arranged to process signals according to a second wireless communication protocol working at a first frequency band, wherein the second wireless communication protocol is different from the first wireless communication protocol. The antenna is shared between the first communication circuit and the second communication circuit. The combiner has a first port coupled to the first communication circuit, a second port coupled to the second communication circuit, and a third port coupled to the antenna. In addition, the combiner provides a first signal path between the third port and the first port and a second signal path between the third port and the second port.

Abstract: A PCB antenna, comprising: a substrate; a radiator, patterned on the substrate, having a branch point; a ground on the substrate; a short path, patterned on the substrate, having two ends where one end is connected to the ground and the other end is connected to the branch point of the radiator; and at least one passive element coupled between the radiator and the short path, is disclosed. The resonant frequency and/or the input impedance of the PCB antenna can be adjusted according to a distance between the passive element and the branch point of the radiator.

Abstract: A compact PCB antenna is disclosed. The compact PCB antenna has a substrate; a ground on the substrate; a radiating element patterned on the substrate; and a shorting path patterned on the substrate, the shorting path extends from a branch point of the radiating element; wherein the branch point defines a first section and a second section of the radiating element, and the first section has a feed pin at one end of the first section and the second section winds; and wherein the shorting path between the radiating element and the ground surrounds a part of the second section and connects to the ground.

Abstract: The present invention is to provide an intelligent antenna mounted on a circuit board including an antenna diversity transceiver circuit connected to an intermediate third end of a T-shaped connecting member, and a first and a second antenna units connected to two symmetric ends of the T-shaped connecting member respectively, wherein two radio frequency switches are interconnected the second antenna unit and one of the two symmetric ends through two transmission lines respectively.

Abstract: The present invention discloses an antenna array installed on a printed circuit board, which comprises two antenna units, each being a microstrip directly installed on two symmetric ends of a T-shape microstrip on a printed circuit board and an asymmetric end of the T-shape microstrip circuit being a feeding end feeding signals simultaneously to the two antenna units. A grounding metal surface is fabricated on the other side of the printed circuit board at a position other than the antenna unit, and keeps a specific distance from at least one corresponding edge of the antenna unit. Since the antenna units are symmetric in shape and have the same feeding end, the radiation direction thereof is shifted towards the two symmetric edges to broaden the range of the use of two symmetric edges.

Abstract: The present invention discloses an antenna array installed on a printed circuit board, which comprises two antenna units, each being a microstrip directly installed on two symmetric ends of a T-shape microstrip on a printed circuit board and an asymmetric end of the T-shape microstrip circuit being a feeding end feeding signals simultaneously to the two antenna units. A grounding metal surface is fabricated on the other side of the printed circuit board at a position other than the antenna unit, and keeps a specific distance from at least one corresponding edge of the antenna unit. Since the antenna units are symmetric in shape and have the same feeding end, the radiation direction thereof is shifted towards the two symmetric edges to broaden the range of the use of two symmetric edges.