| 摘要 |
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 |
