Patent number 8654026 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "The invention relates to an antenna module and, more particularly, to an antenna module capable of generating three operation bandwidths.
"Wireless transmission has gotten more and more attention since portable electronic devices have become more and more popular. How to enhance transmission quality and how to apply various communication standards to one single electronic device are significant issues for wireless transmission. An electronic device in the prior art is used to perform different communication standards by independent antennas. Those antennas are always separated from each other as far as possible so as to prevent the antennas from interfering with each other. The aforesaid manner can be achieved in large device but is difficult to be achieved in small device (e.g. cell phone). Since the electronic device tends to multi-mode and small size, multiple antennas are developed accordingly. However, the multiple antennas occupy much more space since the isolation of the multiple antennas cannot be overcome easily and the multiple antennas are usually formed or disposed on the same substrate."
In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "Therefore, an objective of the invention is to provide an antenna module capable of generating three operation bandwidths, so as to solve the aforesaid problems.
"According to an embodiment of the invention, an antenna module comprises a substrate, a main radiation structure, a strip-shaped radiation structure, a grounding structure, a shorting structure, a parasitic radiation structure and a metal radiation member. The main radiation structure is formed on the substrate. An acute angle is included between a first edge of the main radiation structure and a longitudinal edge of the substrate. The main radiation structure has a signal feeding portion and a connecting portion. The strip-shaped radiation structure is formed on the substrate and extended from a second edge of the main radiation structure. The grounding structure is formed on the substrate. The shorting structure is formed on the substrate. The shorting structure is U-shaped. A first end of the shorting structure is connected to the signal feeding portion and a second end of the shorting structure is connected to the grounding structure. The parasitic radiation structure is formed on the substrate, extended from the grounding structure and parallel to the first edge, wherein a constant distance is between the parasitic radiation structure and the first edge. The metal radiation member is connected to the connecting portion.
"As mentioned in the above, low bandwidth of the antenna module of the invention is controlled by the shorting structure. Since the shorting structure is U-shaped, high bandwidth of the antenna module can be maintained and raised and the shorting structure can cooperate with the strip-shaped structure to match GPS/GLONASS bandwidth. Furthermore, since a constant distance is between the parasitic radiation structure and the first edge of the main radiation structure and the parasitic radiation structure does not contact the main radiation structure, the antenna module of the invention can induce electromagnetic coupling between the parasitic radiation structure and the main radiation structure so as to match and modulate high bandwidth. Accordingly, the antenna of the invention can generate three operation bandwidths including LTE700/GSM850/GSM900 (bandwidth is about 698.about.960 MHz), GPS/GLONASS (bandwidth is about 1570.about.1610 MHz) and GSM1800/GSM1900/UMTS/LTE2300/LTE2500.
"These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings."
URL and more information on this patent, see: Tsai, Wen-Yi; Chung, Kuan-Jen; Su, Chia-Wei. Antenna Module. U.S. Patent Number 8654026, filed
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