标题: | 以电流再利用之CMOS射频前端关键元件设计 The key components of CMOS RF front-end with current-reused approach |
作者: | 黄智伟 Chih-Wei Huang 钟世忠 吴霖堃 Shyh-Jong Chung Lin-Kun Wu 电信工程研究所 |
关键字: | 电流再利用;射频前端;current-reused;RF front-end;CMOS |
公开日期: | 2007 |
摘要: | 本论文分为具带拒滤波之低杂讯放大器和具内建震荡器之低功率混频器两个部分。利用标准TSMC 0.18 um RF CMOS 制程完成本论文中所设计的电路。 第一部分描述设计一个低功率之带拒滤波低杂讯放大器。其量测结果之power gain在3~10GHz内大于9.5dB,NFmin为2.6dB,S11<-5.4dB,不包含缓冲级之功率消耗为6.8mW,接着使用主动式电感实现之微小化的带拒滤波器,使得整体电路之core area只有0.0016 mm2。其量测之power gain为8~12dB、S11<-11dB、在2.5GHz和5.2GHz频段附近抑制干扰讯号的效果分别为19dB及38dB,功率消耗为10.3mW,模拟之NFmin为2dB、P1dB为-14.2dB。 第二部分描述震荡器与混频器之结合与设计。使用电流再利用的方式达到低功率的效果,并进一歩将平衡非平衡转换器整合在电路中,它包含了一个混频器和震荡器及一个balun。此整体电路可达功率增益为15dB,S11<-12dB,功率消耗为6mW。 The thesis consists of three parts: low noise amplifier, LNA with notch filters and low-power oscillator mixer. These propose circuits are fabricated using a standard TSMC 0.18 um RF CMOS process technology. The first part of the thesis is the low power design of low noise amplifier with notch filters. The measurement result of LNA shows the power gain is more than 9.5dB in 3~10GHz, return loss is under -5.4dB, NFmin is 2.6dB, and power consumption exclude buffer is 6.8 mW. Then, we use the design of the miniaturized notch filters realized by active inductor, applied in the integration of LNA. The core area of LNA and notch filters is only 0.0016 mm2. The measurement result of LNA with notch filter shows the power gain is 8~12dB, return loss is under -7.5dB. The suppressed performance of notch filters in 2.5GHz and 5.2 GHz are 19dB and 38dB. The power consumption is 10.3 mW. The simulation results of minimum noise figure and P1dB are 2dB and -14.2dB. The last part describes the combination of VCO and mixer. The circuit uses current-reuse to reach low power consumption, and furthermore a balun is integrated in this design. The total schematic contains mixer, VCO, and on-chip balun. The chip area is 1mmx1.5mm. The simulation results show the conversion gain are 15dB, return loss is under -12dB, P1dB is -16dB. The phase noise is -105 dBc/MHz. The total power consumption is 6mW. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#GT009513602 http://hdl.handle.net/11536/38450 |
显示于类别: | Thesis |
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