| 摘要 |
A patch antenna comprises a dielectric substrate 101 on which there is a resonant patch 107 formed with at least two slots 117, 119. The patch 107 may be formed on a circuit board type substrate, such as FR4. A microstrip feed 113 may be arranged on the same surface 103 of the substrate 101 as the patch 107 such that it is in direct contact with an edge 108 of the patch 107. An earth connection 114 and a signal connection 116 may be made to the said microstrip feed 113. The patch 107 may be directly driven while the slots 117, 119 may be driven to resonance by electromagnetic coupling arrangements. The patch 107 may have radiating edges 106, 108 and non-radiating edges 102, 104. The slots 117, 119 may be arranged with a short open ended portion propagating into the patch from respective non-radiating edges 102, 104 with a larger slot portion running parallel with the said edges. Specific dimensions associated with the location and slot parameters may be used to obtain desired operational characteristics. A conductive ground frame 200 may be arranged with a separation layer from the substrate 101 to obtain the desired antenna resonance performance. The antenna provides a compact, broadband or multi-band antenna for mobile devices. |
