| 摘要 |
PURPOSE:To attain broad band without losing advantages of an inverted-F antenna by forming a plate form radiating conductor plate on the surface of a dielectric plate, overlapping plural conductor plates in layers, arranging them in parallel with a grounded conductor plate and short-circuiting one side of said conductor plate. CONSTITUTION:The plate form radiating conductor plates 1, 2 are formed on both sides of the dielectric plate 3 having a thickness of (t) and both the conductor plates are short-circuited at end face of the dielectric plate by using a short-circuit plate 4. Further, both the conductor plates is short-circuited to the grounded conductor plate 5 by using a short-circuit pin 6. Resonance frequencies f1, f2 of the conductor plates 1, 2 with a constant position of a feeding point as the resonance condition to the conductor plates 1, 2 in this constitution depend on sizes 11X13 and 11X12 of the conductor plates 1, 2 and the thickness (t) of the dielectric plate 3, and the antenna acts like an antenna of double resonance resonated to two frequencies as a whole. |
