| 摘要 |
PURPOSE: A zigzag micro strip patch antenna with one element is provided to reduce adverse effect of an electromagnetic wave on a human body, improve emissivity, and reduce size and weight of a portable terminal. CONSTITUTION: An RT-duroid 5880 substrate(10) is formed of polytetrafluoroethylene for glass micro fiber reinforcement and has a high permittivity of 2.33. A zigzag patch(20) is formed of a conductive metal installed on an upper surface of the substrate(10) by a photosensitive method. A triangular pad(30) is a conductive metal and formed on a side of the patch. L1 is 5mm. Length of the patch is 15mm and diameter of the patch is 12mm. An interval between turns of the patch is 3.5mm and a pitch angle is 16.59°. Thickness of the strip is 0.3mm. A zigzag antenna with one element is mountable on an inside of a terminal as stated above, such that emitted patterns, gains, and bands are improved, adverse effect of an electromagnetic wave on a user's head is minimized, and size and weight reduction of antenna is achieved.
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