【摘要】：天線是手機(jī)設(shè)備的重要部件,影響到手機(jī)的通訊質(zhì)量。同時(shí)滿足小型化、寬帶化、多頻化是手機(jī)天線設(shè)計(jì)的目標(biāo),難點(diǎn)在于覆蓋低頻段LTE700,拓寬低頻段帶寬會引起天線尺寸增大,不易實(shí)現(xiàn)小型化。針對智能手機(jī)對天線小型化與多頻化的需求,本文設(shè)計(jì)了四款新型縫隙型手機(jī)天線,具體如下:(1)設(shè)計(jì)了一款混合縫隙型手機(jī)天線,縫隙結(jié)構(gòu)分別是矩形狀和由矩形、圓形構(gòu)成的混合形狀,天線-6dB帶寬測試值為:0.695-0.805GHz,1.5-3.2GHz,4-15GHz。覆蓋了LTE700、DCS1800、PCS1900、UMTS、LTE2300、LTE2500、GPS、WLAN、UWB的高頻段。(2)設(shè)計(jì)了一款矩形縫隙天線,饋電結(jié)構(gòu)采用彎折形狀,分布在縫隙內(nèi)邊緣。天線-6dB帶寬測試值為:0.82-1.1GHz,2.15-3GHz。覆蓋了GSM850、GSM900、LTE2300、LTE2500、WLAN。(3)在矩形縫隙天線的基礎(chǔ)上,在電路板頂端垂直加載非對稱結(jié)構(gòu)的C形金屬條來拓寬天線的帶寬。實(shí)測天線-6dB帶寬測試值為:0.73-1GHz,2.2-3GHz。覆蓋了GSM850、GSM900、LTE2300、LTE2500、WLAN。(4)對加載C形條的矩形縫隙天線進(jìn)一步優(yōu)化,通過在縫隙中加載電容來拓寬帶寬,天線-6dB帶寬測試值為:0.7-1.2GHz,2.2-3GHz。覆蓋了LTE700、GSM850、GSM900、LTE2300、LTE2500、WLAN。
[Abstract]:Antenna is an important component of mobile phone equipment, which affects the communication quality of mobile phone. At the same time to meet the needs of miniaturization broadband and multi-frequency is the goal of antenna design. The difficulty is that coverage of low frequency band LTE700, widening low frequency band bandwidth will cause antenna size increase which is difficult to achieve miniaturization. In order to meet the demand of smart phone for antenna miniaturization and multi-frequency, four new slot cell phone antennas are designed as follows: (1) A hybrid slot cell phone antenna is designed. The slot structure is rectangular and rectangular, respectively. The measured values of the antenna-6dB bandwidth are: 0.695-0.805GHz, 1.5-3.2GHz, 4-15GHz. It covers the high frequency band of LTE700,DCS1800,PCS1900,UMTS,LTE2300,LTE2500,GPS,WLAN,UWB. (2) A rectangular slot antenna is designed. The antenna-6dB bandwidth is 0.82-1.1 GHz ~ 2.15-3 GHz. Based on the rectangular slot antenna, GSM850,GSM900,LTE2300,LTE2500,WLAN. (3) is covered with a C-shaped metal strip vertically loaded on the top of the circuit board to widen the bandwidth of the antenna. The measured antenna-6dB bandwidth is 0.73-1GHz ~ 2.2-3GHz. The rectangular slot antenna loaded with C-bar is further optimized by covering GSM850,GSM900,LTE2300,LTE2500,WLAN. (4). The bandwidth is widened by loading capacitance in the slot. The measured value of the antenna 6dB bandwidth is 0.7-1.2 GHz ~ 2.2-3 GHz. Covered LTE700,GSM850,GSM900,LTE2300,LTE2500,WLAN.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN828

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本文編號：2359183