【摘要】：隨著無線通信技術(shù)的迅速發(fā)展,應(yīng)用于各種領(lǐng)域的無線通信標(biāo)準(zhǔn)層出不窮。其應(yīng)用已經(jīng)拓展到移動(dòng)蜂窩通信領(lǐng)域的各種標(biāo)準(zhǔn)、全球衛(wèi)星導(dǎo)航系統(tǒng)、無線局域網(wǎng)及無線傳感網(wǎng)等,因而研究設(shè)計(jì)能夠兼容多種通信標(biāo)準(zhǔn)的無線射頻收發(fā)機(jī)十分必要。低噪聲放大器作為接收機(jī)中的第一個(gè)有源模塊,在多模多標(biāo)準(zhǔn)的接收機(jī)中,其寬帶抗阻塞性能對(duì)多模多頻接收機(jī)有很大的影響。本文設(shè)計(jì)了具有抗阻塞功能的寬帶低噪聲放大器,能夠?qū)⒍嗄６囝l接收機(jī)中的聲表面濾波器(SAW)省掉,可以有效地減小芯片面積,節(jié)約成本。本設(shè)計(jì)采用TSMC 0.18μm RF CMOS工藝實(shí)現(xiàn)。介紹了應(yīng)用于0.7-2.6GHz頻段內(nèi)的抗阻塞寬帶低噪聲放大的電路及版圖的設(shè)計(jì)與芯片測(cè)試過程。本文采用電容交叉耦合共柵結(jié)構(gòu)實(shí)現(xiàn)寬帶低噪聲放大器,利用阻抗轉(zhuǎn)移結(jié)構(gòu)實(shí)現(xiàn)抗阻塞功能,電路的后仿真結(jié)果均滿足設(shè)計(jì)指標(biāo)要求。根據(jù)后仿真結(jié)果可以得出,抗阻塞寬帶低噪聲放大器的工作頻段為700MHz到2.6GHz,并且其噪聲系數(shù)在工作頻段內(nèi)小于3.48dB,S11-19.87dB,S22-18.46dB.工作頻帶內(nèi)增益S2110.76dB。線性度輸入三階交調(diào)截點(diǎn)ⅡP3為1.90dBm�？棺枞阅茉谡麄�(gè)工作頻帶內(nèi)有用信號(hào)的增益比干擾信號(hào)的增益大,且增益差在900MHz處為10.16dB,在2.4GHz增益差為4.5dB。在1.8V電源電壓下,功耗為14.6mW。電路的后仿真結(jié)果均滿足設(shè)計(jì)指標(biāo)要求,芯片設(shè)計(jì)的尺寸約為678μm×601μm,已經(jīng)流片,等待測(cè)試驗(yàn)證。具有抗阻塞功能的寬帶低噪聲放大器的研究設(shè)計(jì)對(duì)于多模多標(biāo)準(zhǔn)接收機(jī)的發(fā)展有很大的意義,進(jìn)一步的改善和優(yōu)化很有必要。
[Abstract]:With the rapid development of wireless communication technology, wireless communication standards are emerging in various fields. Its application has been extended to various standards in the field of mobile cellular communication, such as global satellite navigation system, wireless local area network and wireless sensor network, so it is necessary to study and design wireless radio frequency transceiver compatible with various communication standards. Low noise amplifier (LNA) is the first active module in the receiver. In the multimode and multi-standard receiver, its wideband anti-blocking ability has a great influence on the multi-mode multi-frequency receiver. In this paper, a broadband low-noise amplifier with anti-blocking function is designed, which can save the acoustic surface filter (SAW) from the multi-mode multi-frequency receiver, reduce the chip area effectively and save the cost. The design is realized by TSMC 0.18 渭 m RF CMOS process. This paper introduces the circuit, layout design and chip test process of anti-blocking broadband low-noise amplification applied in 0.7-2.6GHz band. In this paper, the capacitive cross-coupled common-gate structure is used to realize the wideband low-noise amplifier, and the impedance transfer structure is used to realize the anti-blocking function. The post-simulation results of the circuit all meet the design requirements. According to the simulation results, the operating frequency range of the anti-blocking broadband low-noise amplifier is from 700MHz to 2.6 GHz, and its noise coefficient is less than 3.48 dB ~ (11) 19.87 dB ~ (1) S22-18.46 dB in the operating frequency range. The gain in the operating band is S2110.76dB. The linear input point 鈪，

本文編號(hào)：2181219