摘要:
A dual-band antenna has a ground portion, a connection portion with a feeding point separated from the ground portion and a short portion connected to the ground portion and the connection portion. The short portion and the ground portion are formed an acute angle therebetween. The connection portion respectively connect a first radiating portion and a second radiating portion. The first radiating portion and the second radiating portion are parallel to said ground portion. The short portion is arranged between the ground portion and the first radiating portion. When the dual-band antenna operates at wireless operation, the connection portion, the first radiating portion and the second radiating portion resonate to obtain a first frequency range and a second frequency range. The short portion is formed as a function of an inductance.
摘要:
A multi-band antenna includes a first radiating portion, a second radiating portion extending perpendicularly from the first radiating portion, a third radiating portion extending perpendicularly from the second radiating portion and located at a same side concerning the second radiating portion with the first radiating portion, a fourth radiating portion extending perpendicularly from the third radiating portion and located at a same side concerning the third radiating portion with the second radiating portion, a fifth radiating portion extending from the fourth radiating portion towards the second radiating portion and spaced from the second radiating portion, a sixth radiating portion aligned with the first radiating portion with a feeding portion connected therebetween, a seventh radiating portion extending towards the fourth radiating portion from the sixth radiating portion, and a grounding portion spaced from the first radiating portion and the sixth radiating portion and having a grounding point.
摘要:
A multi-band antenna includes a first radiating portion, a second radiating portion extending perpendicularly from the first radiating portion, a third radiating portion extending perpendicularly from the second radiating portion and located at a same side with respect to the second radiating portion as the first radiating portion, a fourth radiating portion extending perpendicularly from the third radiating portion towards the first radiating portion, a fifth radiating portion in alignment with the first radiating portion, with a feeding portion connecting with the first radiating portion and the fifth radiating portion, a sixth radiating portion extending perpendicularly towards the fourth radiating portion from the fifth radiating portion and spaced away from the fourth radiating portion, and a grounding portion spaced from the first radiating portion, the feeding portion and the fifth radiating portion with a grounding area disposed thereon, and connected with the first radiating portion by a connecting portion.
摘要:
A multi-band antenna includes a first radiating portion, a second radiating portion extending perpendicularly from the first radiating portion, a third radiating portion extending perpendicularly from the second radiating portion and located at a same side with respect to the second radiating portion as the first radiating portion, a fourth radiating portion extending perpendicularly from the third radiating portion towards the first radiating portion, a fifth radiating portion in alignment with the first radiating portion, with a feeding portion connecting with the first radiating portion and the fifth radiating portion, a sixth radiating portion extending perpendicularly towards the fourth radiating portion from the fifth radiating portion and spaced away from the fourth radiating portion, and a grounding portion spaced from the first radiating portion, the feeding portion and the fifth radiating portion with a grounding area disposed thereon, and connected with the first radiating portion by a connecting portion.
摘要:
An antenna structure includes an antenna pattern having a feeding hollow and a grounding hollow formed in one surface thereof and a feeing cable having an inner lead, a metallic shield, a feeding piece connected to one end of the inner lead and a grounding piece connected to one end of the metallic shield. The feeding piece and the grounding piece of the feeding cable respectively connect to the antenna pattern by conductive glue prearranged in the feeding hollow and the grounding hollow of the antenna pattern. Therefore, the electrical connection between the antenna pattern and the feeding cable is more stable. In addition, the antenna pattern can be formed integrated with a housing of an electric apparatus or plated on the housing, so an extra space can be saved to make the electric apparatus more compact. The present invention also discloses a method for manufacturing the antenna structure.
摘要:
An antenna structure includes a connection portion. A feed portion connecting to the connection portion defines a feed point thereon. An inductance portion extends from the connection portion, and a free end of the inductance portion connects to a ground end. A capacitance portion that is in a long narrow strip shape extends from the connection portion and is parallel with and adjacent to the ground end. And radiating portions connect to the connection portion respectively. The antenna structure employs the inductance portion, the capacitance portion and the ground end to simulate a LC parallel connection to substitute for an inductor and a capacitor. Therefore, the antenna structure achieves an aim of adjusting a resonance frequency and an impedance matching without the inductor and the capacitor, simplifying the design of the antenna structure, decreasing the manufacture cost and attaining a good performance.
摘要:
An embedded antenna used in mobile phone includes a lower and a higher frequency portions connecting with the lower frequency portion via a first connecting portion. The lower frequency portion is a bended structure in planar inverted F antenna (PIFA) shape. The higher frequency portion is a loop antenna working in two different higher frequencies, including a first higher frequency portion and a second higher frequency portion connecting with the first one via a second connecting portion. The first connecting portion defines a feeding portion and a grounding portion. The second higher frequency portion defines another grounding portion. An electric current is formed between the first and the second higher frequency portions and can heighten the gain and the frequency band of the antenna. Additionally, a loudspeaker is disposed in a receiving space formed between the lower and higher frequency portions to save space with lowest influence to the antenna.
摘要:
A wireless device includes a housing having a shielding case and a dielectric case. The housing receives a printed circuit board and an antenna element. The printed circuit board has a feeding pad, a first ground pad and a second ground pad. The antenna has a feeding portion electronically coupled with the feeding pad of the printed circuit board and a ground portion electronically coupled with the shielding case for increasing ground dimension to improve antenna characteristic. The first and second ground pads of the printed circuit board electronically coupled with the shielding case for reducing coupling effect to improve antenna characteristic.
摘要:
A mobile phone has a housing and an antenna assembly configured in the housing. The housing has a front portion, a rear portion, a top portion, a bottom portion and a side portion. The antenna assembly has a telecommunication antenna operating as at least one wireless telecommunication band, a short range antenna operating as at least one wireless short range communication band, a first broadcast receiving antenna operating at first broadcast band and a second broadcast receiving antenna operating at second broadcast band. The first broadcast band is lower than the second broadcast band. Each of the antennas is configured in at lest one of the portions of the housing. The mobile phone operates at diverse wireless communication systems by using the antennas. The antennas are dispersed in the mobile phone for reducing electromagnetic interference and size of the mobile phone.