Abstract: A pellicle includes a frame having an attachment surface configured to attach to a photomask, wherein the frame comprises a vent hole. The pellicle further includes a filter covering the vent hole, wherein the filter directly contacts an inner surface of the frame, and the filter extends in a direction parallel to the attachment surface. The pellicle further includes a membrane extending over a top surface of the frame.

Abstract: An antenna includes a base, a ground layer printed on the base, a first antenna portion, a second antenna portion, and an isolation slot defined in the grounded layer. The isolation slot is arranged between the first antenna portion and the second antenna portion to reduce the interference between the first antenna portion and the second antenna portion.

Abstract: A dual frequency antenna module is disposed on a substrate. The substrate includes a first surface and a second surface. The dual frequency antenna module includes a first antenna, a second antenna, a first connecting portion, and a second connecting portion. The antennas are in symmetry about a central line of the antenna module and disposed on the first surface. Each antenna includes a radiation portion and a feeding portion. The connecting portions are disposed on the first surface and connected to each other in symmetry. A width of each microstrip transmission line of the connecting portions is less than a width of each microstrip transmission line of the antennas. A wavelength of electromagnetic waves transmissible through the microstrip transmission lines of the connecting portions is equal to one half of a wavelength of electromagnetic waves transmissible through the microstrip transmission lines of the first and second antennas.

Abstract: A method for reducing interference between WiMAX signals and WiFi signals includes: obtaining a work frequency of the WiMAX module via the processor; comparing the work frequency of the WiMAX module with a preset frequency via the processor; and selecting a work frequency for the WiFi module according to the comparison result via the processor to make a difference between the work frequency of the WiFi module and the work frequency of the WiMAX module as greater as possible to reduce the interference between the WiFi module and the WiMAX module. An electronic device is also provided.

Abstract: An antenna includes a base, a ground layer printed on the base, a first antenna portion, a second antenna portion, and an isolation slot defined in the grounded layer. The isolation slot is arranged between the first antenna portion and the second antenna portion to reduce the interference between the first antenna portion and the second antenna portion.

Abstract: A dual frequency antenna module is disposed on a substrate. The substrate includes a first surface and a second surface. The dual frequency antenna module includes a first antenna, a second antenna, a first connecting portion, and a second connecting portion. The antennas are in symmetry about a central line of the antenna module and disposed on the first surface. Each antenna includes a radiation portion and a feeding portion. The connecting portions are disposed on the first surface and connected to each other in symmetry. A width of each microstrip transmission line of the connecting portions is less than a width of each microstrip transmission line of the antennas.

Abstract: A slot antenna is formed on a base. The base includes a first surface and an opposite second surface. The slot antenna includes a feeding portion formed on the first surface, a ground portion and a radiating portion formed on the second surface. The radiating portion includes a first radiating body being surrounded by a first slot, a second radiating body being surrounded by a second slot, a first switch and a second switch. The first switch is set between the first radiating body and the ground portion. The second switch is set between the second radiating body and the ground portion.

Abstract: A solid antenna configured above a substrate includes a short portion, a feeding portion and a radiating portion including four radiators connected one-by-one. A first radiator includes a first upper section on a first plane, a first lower section on a second plane, and a first connection section connecting the first upper section to the first lower section. The second radiator includes a second upper section on the first plane, and a second connection portion connecting the second upper section to the first lower section. The third radiator includes a third upper section and a fourth upper section on the first plane, a second lower section on the second plane, a third connection section connecting the third upper section to the second lower section, and a fourth connection section connecting the second lower section to the fourth upper section. The fourth radiator extends towards the substrate.

Abstract: A solid antenna disposed on a substrate includes a first grounding portion disposed on the substrate, a feeding portion perpendicular to the substrate, a radiating portion, and a coupling portion disposed on the substrate and separated from the radiating portion. The radiating portion includes a first radiating part, a second radiating part, a connection part, a third radiating part perpendicularly connected to the feeding portion, and a fourth radiating part connected in series. The second radiating part, the connection part, and the third radiating part are disposed on a plane parallel with the substrate. Both the first radiating part and the fourth radiating part extend from the plane to the substrate. The coupling portion is disposed on the substrate and is separated from the radiating portion.

Abstract: A slot antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The radiating portion is located on the second surface of the substrate and defines a sector-shaped slot, a first rectangle-shaped slot, a second rectangle-shaped slot, and a third rectangle-shaped slot, wherein the sector-shaped slot is defined by a first semidiameter, a second semidiameter, and an arc connected one by one.

Abstract: A slot antenna is formed on a base. The base includes a first surface and an opposite second surface. The slot antenna includes a feeding portion formed on the first surface, a ground portion and a radiating portion formed on the second surface. The radiating portion includes a first radiating body being surrounded by a first slot, a second radiating body being surrounded by a second slot, a first switch and a second switch. The first switch is set between the first radiating body and the ground portion. The second switch is set between the second radiating body and the ground portion.

Abstract: A microstrip antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion, a grounding portion, and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The grounding portion is located on the second surface of the substrate. The radiating portion is located on the first surface and includes a first radiating part, a second radiating part, a third radiating part, and a fourth radiating part. Each of the first radiating part, the second radiating part, and the third radiating part is on a rectangle-shaped strip line. The first radiating part is connected to the feeding portion. The fourth radiating part is perpendicularly connected to a second end of the third radiating part.

Abstract: A slot antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion, a grounding portion and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The grounding portion is rectangular and located on the second surface of the substrate, and defines a circular clearance in a substantial center portion thereof. The radiating portion is located on the second surface of the substrate and comprises at least one elongated microstrip with one end connected to the grounding portion and the other end extending towards the center of the circular clearance, wherein the feeding portion interacts with the radiating portion to transmit the electromagnetic signals.

Abstract: A solid antenna configured above a substrate includes a short portion, a feeding portion and a radiating portion including four radiators connected one-by-one. A first radiator includes a first upper section on a first plane, a first lower section on a second plane, and a first connection section connecting the first upper section to the first lower section. The second radiator includes a second upper section on the first plane, and a second connection portion connecting the second upper section to the first lower section. The third radiator includes a third upper section and a fourth upper section on the first plane, a second lower section on the second plane, a third connection section connecting the third upper section to the second lower section, and a fourth connection section connecting the second lower section to the fourth upper section. The fourth radiator extends towards the substrate.

Abstract: An antenna is formed by a conductive metal layer disposed on a substrate, and includes a radiating portion and a feeding portion. The radiating portion defines a first rectangle slot, a second rectangle slot parallel to the first rectangle slot, a first stripe slot perpendicularly communicating with the first rectangle slot, a second stripe slot perpendicularly communicating with the second rectangle slot and in parallel to the first stripe slot, and a plurality of spiral slots communicating with the first and second rectangle slots, respectively. The feeding portion is formed by the conductive metal layer located between the first stripe slot and the second stripe slot to feeding electromagnetic signals.

Abstract: A slot antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The radiating portion is located on the second surface of the substrate and defines a sector-shaped slot, a first rectangle-shaped slot, a second rectangle-shaped slot, and a third rectangle-shaped slot, wherein the sector-shaped slot is defined by a first semidiameter, a second semidiameter, and an arc connected one by one.

Abstract: A monopole antenna is disposed on a substrate. The substrate includes a first surface and a second surface opposite to the first surface. The monopole antenna includes a feeding portion, a radiating portion, a grounding portion and a coupling portion. The feeding portion is disposed on the first surface to feed electromagnetic signals. The radiating portion is disposed on the first surface and with one end connected to the feeding portion. The grounding portion is positioned on the second surface substantially corresponding to the one end of the radiating portion. The coupling portion is positioned on the second surface and corresponding to the other end of the radiating portion. The radiating portion is coupled with the coupling portion to radiate electromagnetic signals.

Abstract: A slot antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion, a grounding portion and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The grounding portion is rectangular and located on the second surface of the substrate, and defines a circular clearance in a substantial center portion thereof. The radiating portion is located on the second surface of the substrate and comprises at least one elongated microstrip with one end connected to the grounding portion and the other end extending towards the centre of the circular clearance, wherein the feeding portion interacts with the radiating portion to transmit the electromagnetic signals.

Abstract: A slot antenna disposed on a substrate including a first surface and an opposite second surface includes a feeding portion, a first radiation portion, a second radiation portion, and a third radiation portion. The feeding portion is disposed on the first surface, and operable to feed electromagnetic signals. The first radiation portion electronically connected to the feeding portion is circular-shaped and disposed on the first surface. The second radiating portion is disposed on the second surface and defines a slot. The second radiation portion couples the first radiation portion to radiate the electromagnetic signals. The third radiation portion is ring-shaped and disposed on the second surface. The third radiation portion couples the first radiation portion to radiate the electromagnetic signals. The first radiation portion, the second radiation portion, and the third radiation portion respectively radiate electromagnetic signals with different frequencies. The second radiation portion is grounded.

Abstract: A microstrip antenna located on a substrate with a first surface and a second surface opposite to the first surface includes a feeding portion, a grounding portion, and a radiating portion. The feeding portion is located on the first surface of the substrate to feed electromagnetic signals. The grounding portion is located on the second surface of the substrate. The radiating portion is located on the first surface and includes a first radiating part, a second radiating part, a third radiating part, and a fourth radiating part. Each of the first radiating part, the second radiating part, and the third radiating part is on a rectangle-shaped strip line. The first radiating part is connected to the feeding portion. The fourth radiating part is perpendicularly connected to a second end of the third radiating part.