Abstract: A Doherty power amplifier circuit having a main power amplification device, an auxiliary power amplification device arranged in parallel with the main power amplification device, and a load modulation circuit comprising a harmonic injection circuit connected with respective outputs of the main power amplification device and the auxiliary power amplification device. The harmonic injection circuit is arranged to transfer harmonic components generated at the main power amplification device to the auxiliary power amplification device and harmonic components generated at the auxiliary power amplification device to the main power amplification device, when both the main and auxiliary power amplification devices are operating, for modulating the respective outputs of the main power amplification device and the auxiliary power amplification device.

Abstract: This invention provides a clip locking device including a first clip body, a second clip body, and a fastener. The first clip body has a protruding piece, the first clip body sliding fits with the sliding groove on the guide rail by the protruding piece. The fastener is mounted at the first clip body for pressing the first clip body tightly against the guide rail. The second clip body is detachably connected with the first clip body, the second clip body has a vertical sheet, the vertical sheet is used for connecting with the locking tongue. By the first clip body, the protruding piece, and the fastener, mounted the first clip body to the guide rail, and the position of the first clip body on the guide rail can be adjusted by adjusting the fastener.

Abstract: A mounting structure for a waterproof rubber strip of a vehicle cover includes a vehicle cover and an edge rubber strip. A flat adhesive surface is provided on the edge rubber strip. The edge rubber strip is sealingly adhered and fixed with the vehicle cover through the flat adhesive surface. The mounting structure further includes a first joint. The edge rubber strip is provided with an L-shaped engaging portion. The first joint is fixedly mounted on the vehicle cover. An end of the engaging portion is embedded in the first joint, and the engaging portion is located between the first joint and the vehicle cover. In addition, the edge rubber strip is provided with the L-shaped engaging portion, and the first joint cooperates with the vehicle cover to clamp the engaging portion, so that the edge rubber strip is sealed and fixed on the vehicle cover.

Abstract: A fully-embedded vehicle cover is disclosed, the main cross rod being maintained in parallel to the auxiliary cross rod; T-shaped embedding slots being provided on both the main cross rod and the auxiliary cross rod; T-shaped embedding bars are provided on the elastic sealing bar; the embedding bars being clamped and embedded in the embedding slots; the elastic sealing bar being used for sealing gaps between the main cross rod and the auxiliary cross rod; the longitudinal rod and the main or auxiliary cross rod being directly or indirectly sealingly matched with together to form a plurality of frames; and the cover plate being sealingly clamped and embedded in the frames. There is no fitting gap between the longitudinal rod, the main cross rod, the auxiliary cross rod, the cover plate and the elastic sealing bar in the vehicle cover, which can ensure no water leakage or seepage.

Abstract: A locking structure of a vehicle cover includes a vehicle cover, at least two mounting rods, a depressor and a torsion spring. The mounting rods are arranged in parallel. The vehicle cover is laid on the mounting rods. The depressor is rotatably mounted on the mounting rods through the torsion spring, and cooperates with the mounting rods to clamp the vehicle cover. The depressor is installed on the mounting rods through the spring, and cover is clamped between the rod and the depressor by the depressor, so that the spring always has a tendency to drive the depressor to clamp the rod, and the cover is pressed against the rods, which means the cover is fixed on the rods, so that a connection between the cover and the rods is more stable and it is not easy for the cover to shake off from the rods.

Abstract: The application discloses a mounting structure for a waterproof rubber strip of a vehicle cover includes a vehicle cover and an edge rubber strip. A flat adhesive surface is provided on the edge rubber strip. The edge rubber strip is sealingly adhered and fixed with the vehicle cover through the flat adhesive surface. The mounting structure further includes a first joint. The edge rubber strip is provided with an L-shaped engaging portion. The first joint is fixedly mounted on the vehicle cover. An end of the engaging portion is embedded in the first joint, and the engaging portion is located between the first joint and the vehicle cover. The disclosure presents the following advantages that: the edge rubber strip includes the flat adhesive surface therewith, and is sealingly adhered to the vehicle cover through the flat adhesive surface, so that water does not leak from a slit between the edge rubber strip and the vehicle cover.

Abstract: A locking structure of a vehicle cover includes a vehicle cover, at least two mounting rods, a depressor and a torsion spring. The mounting rods are arranged in parallel. The vehicle cover is laid on the mounting rods. The depressor is rotatably mounted on the mounting rods through the torsion spring, and cooperates with the mounting rods to clamp the vehicle cover. The depressor is installed on the mounting rods through the spring, and the cover is clamped between the rod and the depressor by the depressor, so that the spring always has a tendency to drive the depressor to clamp the rod, and the cover is pressed against the rods, which means the cover is fixed on the rods, so that a connection between the cover and the rods is more stable and it is not easy for the cover to shake off from the rods.

Abstract: A fully-embedded vehicle cover includes at least two mounting rods and a vehicle cover. The mounting rods are parallel to each other. The vehicle cover is laid on the mounting rods. The fully-embedded vehicle cover further includes a front railing and a depressor. The front railing is fixed on the vehicle cover and perpendicular to the mounting rods. The front railing is detachably matched with the mounting rods. The depressor is rotatably mounted on the mounting rods, is parallel to the mounting rod, and cooperates with the mounting rod to clamp the vehicle cover.

Abstract: The application discloses a fixing and mounting structure for a vehicle cover which includes a vehicle cover and two mounting rods. The two mounting rods are parallel to each other. The vehicle cover is laid on the two parallel mounting rods. The fixing and mounting structure further includes a front railing, a fixed bolt, a first slider, a second slider and a locking nut. The front railing is fixed on the vehicle cover. The first slider is slidably arranged on the front railing. The fixed bolt is arranged on the first slider. The locking nut is matched with the fixed bolt. A sliding hole is defined in the second slider, and the fixed bolt passes through the sliding hole in the second slider. The locking nut abuts against the second slider, and the second slider cooperates with the front railing to clamp the mounting rods.

Abstract: This invention provides an integrated fastening device including a first clip seat, a second clip seat and a fastener, the fastener is used for fixing the first clip seat in the sliding groove of the mounting bar, the second clip seat is used for mounting on the cover, a hook is disposed at the first clip seat for snap-fitting with the second clip seat. The beneficial effects of this technical solution lie in: the hook and the second clip seat are fitted together to prevent longitudinal slippage between the hook and the cover.

Abstract: This invention provides a clip locking device including a first clip body, a second clip body, and a fastener. The first clip body has a protruding piece, the first clip body sliding fits with the sliding groove on the guide rail by the protruding piece. The fastener is mounted at the first clip body for pressing the first clip body tightly against the guide rail. The second clip body is detachably connected with the first clip body, the second clip body has a vertical sheet, the vertical sheet is used for connecting with the locking tongue. By the first clip body, the protruding piece, and the fastener, mounted the first clip body to the guide rail, and the position of the first clip body on the guide rail can be adjusted by adjusting the fastener.

Abstract: A fully-embedded vehicle cover is disclosed, the main cross rod being maintained in parallel to the auxiliary cross rod; T-shaped embedding slots being provided on both the main cross rod and the auxiliary cross rod; T-shaped embedding bars are provided on the elastic sealing bar; the embedding bars being clamped and embedded in the embedding slots; the elastic sealing bar being used for sealing gaps between the main cross rod and the auxiliary cross rod; the longitudinal rod and the main or auxiliary cross rod being directly or indirectly sealingly matched with together to form a plurality of frames; and the cover plate being sealingly clamped and embedded in the frames. There is no fitting gap between the longitudinal rod, the main cross rod, the auxiliary cross rod, the cover plate and the elastic sealing bar in the vehicle cover, which can ensure no water leakage or seepage.

Abstract: The invention discloses a planar end-fire pattern reconfigurable antenna, including a dielectric substrate, a radiation patch, a ground plane, a switch and bias circuit, and a coaxial cable, wherein the dielectric substrate includes a first surface and a second surface in opposite, the radiation patch is attached to the first surface of the dielectric substrate, the ground plane is attached to the second surface of the dielectric substrate, the switch and bias circuit is arranged in a slot of the ground plane, the coaxial cable includes an outer conductor and an inner conductor, the outer conductor is connected to the ground plane, the inner conductor penetrates through the dielectric substrate and is connected to the radiation patch, and the coaxial cable is arranged at a geometric center of the planar end-fire pattern reconfigurable antenna.

Abstract: The invention discloses a planar end-fire pattern reconfigurable antenna, including a dielectric substrate, a radiation patch, a ground plane, a switch and bias circuit, and a coaxial cable, wherein the dielectric substrate includes a first surface and a second surface in opposite, the radiation patch is attached to the first surface of the dielectric substrate, the ground plane is attached to the second surface of the dielectric substrate, the switch and bias circuit is arranged in a slot of the ground plane, the coaxial cable includes an outer conductor and an inner conductor, the outer conductor is connected to the ground plane, the inner conductor penetrates through the dielectric substrate and is connected to the radiation patch, and the coaxial cable is arranged at a geometric center of the planar end-fire pattern reconfigurable antenna.

Abstract: A locking device for a carriage cover includes a limit locking clamp assembly and a lock catch assembly, wherein the limit locking clamp assembly is detachably disposed at the carriage of the vehicle body and is provided with a limit step and a limit protrusion disposed at the lower surface of the limit step; and the lock catch assembly is disposed at the carriage cover and is provided with a lock bolt and a limit groove formed in the lock bolt, the lock bolt is clamped into the limit step, and the limit protrusion is clamped into the limit groove to connect the lock catch assembly to the limit locking clamp assembly, so that the carriage cover is mounted on the carriage. The carriage cover is reliably connected to the vehicle body and is not prone to getting loose or moving.

Abstract: A locking device for a carriage cover includes a limit locking clamp assembly and a lock catch assembly, wherein the limit locking clamp assembly is detachably disposed at the carriage of the vehicle body and is provided with a limit step and a limit protrusion disposed at the lower surface of the limit step; and the lock catch assembly is disposed at the carriage cover and is provided with a lock bolt and a limit groove formed in the lock bolt, the lock bolt is clamped into the limit step, and the limit protrusion is clamped into the limit groove to connect the lock catch assembly to the limit locking clamp assembly, so that the carriage cover is mounted on the carriage. The carriage cover is reliably connected to the vehicle body and is not prone to getting loose or moving.

Abstract: A locking device includes a lock block assembly including a first locking structure and a first shock-absorption structure in a first direction; and a connector assembly including a second locking structure, and the second locking structure is clamped into the first locking structure to lock the lock block assembly and the connector assembly. A locking frame includes the locking device, a first sideboard, and a second sideboard, the lock block assembly is slidably mounted on the first sideboard; and the connector assembly is slidably mounted on the second sideboard. The locking device and the locking frame can only include the lock block assembly and the connector assembly, thereby being simple in structure.

Abstract: A Doherty power amplifier circuit having a main power amplification device, an auxiliary power amplification device arranged in parallel with the main power amplification device, and a load modulation circuit comprising a harmonic injection circuit connected with respective outputs of the main power amplification device and the auxiliary power amplification device. The harmonic injection circuit is arranged to transfer harmonic components generated at the main power amplification device to the auxiliary power amplification device and harmonic components generated at the auxiliary power amplification device to the main power amplification device, when both o the main and auxiliary power amplification devices are operating, for modulating the respective outputs of the main power amplification device and the auxiliary power amplification device.

Abstract: A Doherty power amplifier circuit having a main power amplification device, an auxiliary power amplification device arranged in parallel with the main power amplification device, and a load modulation circuit comprising a harmonic injection circuit connected with respective outputs of the main power amplification device and the auxiliary power amplification device. The harmonic injection circuit is arranged to transfer harmonic components generated at the main power amplification device to the auxiliary power amplification device and harmonic components generated at the auxiliary power amplification device to the main power amplification device, when both the main and auxiliary power amplification devices are operating, for modulating the respective outputs of the main power amplification device and the auxiliary power amplification device.

Abstract: A Doherty power amplifier circuit having a main power amplification device, an auxiliary power amplification device arranged in parallel with the main power amplification device, and a load modulation circuit comprising a harmonic injection circuit connected with respective outputs of the main power amplification device and the auxiliary power amplification device. The harmonic injection circuit is arranged to transfer harmonic components generated at the main power amplification device to the auxiliary power amplification device and harmonic components generated at the auxiliary power amplification device to the main power amplification device, when both the main and auxiliary power amplification devices are operating, for modulating the respective outputs of the main power amplification device and the auxiliary power amplification device.