Frequency-adjustable circulation antenna structure

• Main Authors: ZHONG SHIZHONG, HONG SHENGCHAO
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2011
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

The utility model discloses a frequency-adjustable circulation antenna structure which comprises a grounding surface and a circulating radiation part, wherein the circulating radiation part comprises a signal feed end and a short circuit end which are electrically connected with the grounding surface, and a front region of the short circuit end is provided with a frequency adjusting region which is close to the grounding surface; and the frequency adjusting region is connected with at least one bias voltage short circuit switch to be in electric connection which can be turned on and off with the grounding surface. By adopting the design, the structure leads a feedback signal to be previously short circuit to the grounding surface by the bias voltage short circuit switch when the bias voltage short circuit switch inputs the bias for unblanking, thereby shortening a current circumambulating path, and achieving the aim of frequency adjusting. Therefore, the frequency-adjustable circulation antenna structure is a