本文選題：電視發(fā)射天線　切入點：E型貼片　出處：《大連海事大學(xué)學(xué)報》2017年01期 　論文類型：期刊論文

【摘要】：為減小傳統(tǒng)電視發(fā)射天線的體積,提出將微帶結(jié)構(gòu)天線應(yīng)用于電視發(fā)射系統(tǒng)的方法,設(shè)計一種基于E型貼片疊層的微帶天線.通過采用疊層結(jié)構(gòu)、E型貼片、饋電探針加裝金屬墊圈、空氣填充和7/16射頻同軸連接器,實現(xiàn)了微帶結(jié)構(gòu)的電視發(fā)射天線.為驗證方法的有效性,加工了一款微帶結(jié)構(gòu)的UHF頻段電視發(fā)射天線.測試結(jié)果表明:天線駐波比小于1.15(|S11|≤-23 d B)的相對阻抗帶寬達到18.2%(頻率范圍544 MHz~653 MHz);中心頻率處天線增益為9.23 d Bi;在1000W發(fā)射功率下,天線能夠可靠工作.設(shè)計的微帶結(jié)構(gòu)電視發(fā)射天線尺寸顯著減小,簡化了天線結(jié)構(gòu)和調(diào)試過程,從而節(jié)約了天線的制作成本.
[Abstract]:In order to reduce the volume of traditional TV transmitting antenna, a method of applying microstrip antenna to TV transmitting system is proposed, and a microstrip antenna based on E type laminated patch is designed. The microstrip structure of TV transmitting antenna is realized by adding metal gasket, air filling and 7/16 RF coaxial connector to the feed probe. A UHF transmission antenna with microstrip structure has been fabricated. The experimental results show that the relative impedance bandwidth of the antenna with standing wave ratio less than 1.15 (S11 鈮，

本文編號：1566547