本文關(guān)鍵詞：一種高頻帶利用率調(diào)制方式的芯片設(shè)計(jì)　出處：《東南大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 拓展二元相移鍵控 電路 有源巴倫 雙平衡 并聯(lián)峰化

【摘要】：隨著通信技術(shù)的發(fā)展以及各個(gè)領(lǐng)域?qū)π畔鬏斔俾实囊蟛粩嗵岣?作為重要的不可再生資源,無(wú)線電頻譜的有限性和稀缺性日益顯現(xiàn)。在通信工程領(lǐng)域,怎樣更好的提高頻譜利用率已經(jīng)成為備受關(guān)注的課題。作為超窄帶(UNB)調(diào)制技術(shù)的一種,拓展的二元相移鍵控(EBPSK)調(diào)制方式通過壓縮傳輸信號(hào)帶寬,可以極大提高頻譜利用率,具有很大的潛力。本論文采用TSMC 0.18 μm CMOS工藝,設(shè)計(jì)覆蓋200MHz到2.4GHz載波頻率的EBPSK調(diào)制電路。系統(tǒng)結(jié)構(gòu)由巴倫、模式選擇電路、控制模塊、相位鍵控電路及輸出緩沖組成,實(shí)現(xiàn)三種工作模式：反相調(diào)制,缺周期調(diào)制(MCM)以及窄脈沖調(diào)制,三種調(diào)制模式可通過外部信號(hào)加以選擇。其中,巴倫電路采用有源結(jié)構(gòu)避免使用電感,有效減小電路面積,縮減流片成本；相位鍵控模塊采用雙平衡結(jié)構(gòu)減小時(shí)鐘饋通及電荷注入等非理想效應(yīng)：由于基帶信號(hào)未經(jīng)濾波,故已調(diào)信號(hào)中含有較多的高頻分量,在輸出緩沖電路中采用電感并聯(lián)峰化技術(shù)提高帶寬從而提高信號(hào)的保真度。后仿真結(jié)果表明,當(dāng)載波頻率介于200MHz到2.5GHz之間時(shí),電路滿足各項(xiàng)指標(biāo)要求。芯片采用在片和鍵合兩種方式進(jìn)行測(cè)試,結(jié)果顯示芯片均可正確實(shí)現(xiàn)三種調(diào)制功能且三種調(diào)制模式可通過外部控制信號(hào)加以選擇,功耗小于60mW,芯片面積為0.70×0.68mm2。
[Abstract]:With the requirement of the information transmission rate of the development of communication technology and various fields continue to improve, as an important non renewable resources, limited and scarce radio spectrum is becoming increasingly obvious. In the field of communication engineering, how to better improve the spectrum utilization has become the concern of the subject. As a super narrow band (UNB) modulation the expansion of the two phase shift keying (EBPSK) modulation by compression and transmission of signal bandwidth, can greatly improve the spectrum utilization, has great potential. This paper uses TSMC 0.18 m CMOS process, designed to cover the 200MHz to EBPSK modulation circuit 2.4GHz carrier frequency. The system is composed of Balun, mode selection circuit, control module, phase keying circuit and an output buffer, three work mode: phase modulation, short cycle modulation (MCM) and narrow pulse modulation, three modulation modes by Part of the signal to be chosen. Among them, the active balun circuit structure to avoid the use of inductor, effectively reduce the circuit area and reduce chip cost; phase keying module adopts double balanced structure reduce the clock feedthrough and charge injection and other non ideal effects: the baseband signal without filtering, so it has high frequency component in the signal contains more, the inductive shunt peaking technology in the output buffer circuit to improve the bandwidth to improve the fidelity of the signal. The results of simulation show that, when the carrier frequency is between 200MHz to 2.5GHz, the circuit could meet the requirements. The chip is tested by two ways in the film and key results show that the chip can achieve the right three modulation the function and the three kinds of modulation mode can be selected by an external control signal, the power consumption is less than 60mW, the chip area is 0.70 * 0.68mm2.

【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN402

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本文編號(hào)：1438849