本論文主要針對毫米波CMOS RFICs射頻前端關鍵元件進行研究與製作，晶片製作使用國家晶片中心提供的標準TSMC CMOS 0.18 μm製程，內容分為兩個部份：
第一部份介紹毫米波的研究背景，毫米波具有良好的高速傳送特性，可應用於短距離無線傳輸。本論文根據參考文獻，介紹IEEE 802.15.3c之60 GHz毫米波射頻前端收發機系統規劃，針對包括靈敏度、SNR、通道頻寬、傳輸速率等進行討論，並提出60-GHz WPAN鏈路預算，希望對射頻系統規劃者與電路設計者有參考作用。
第二部份為毫米波CMOS RFICs射頻前端關鍵元件之設計與量測。平衡器採用Marchand balun架構搭配輸出匹配網路，利用晶片設計之多層式結構增加耦合量，並提出額外加入第四層金屬之屏蔽效應，有效改善平衡效果。量測結果在25–65 GHz內，振幅不平衡小於 ±1.5 dB，相位不平衡小於 ±10o，頻寬百分比為89 %。低雜訊放大器採用兩級串接架構之共源極放大器，在有限功率的考量下選擇電晶體尺寸，達成低功率設計，並使用Ansoft HFSS模擬所需之源極退化電感，所有傳輸走線均使用Sonnet模擬，由Agilent ADS進行共同模擬，務必要求佈局與模擬一致。量測頻率為20 GHz，當供應電壓Vdd為1.2 V時，整體的消耗功率為9.6 mW、增益為9.3 dB、雜訊指數為4.4 dB；當供應電壓Vdd為1.0 V時，整體的消耗功率為7.0 mW、增益為8.5 dB、雜訊指數為4.6 dB，未來可將設計頻率提升至毫米波頻段。帶通濾波器採用ACMRC結構進行設計，產生兩個零點頻率，搭配輸入與輸出端之耦合電容產生帶通效果，其中耦合電容亦使用多層式結構實現，總晶片面積為0.85 mm × 0.64 mm，ACMRC結構面積為0.45 mm × 0.27 mm。量測結果在61–68 GHz內，插入損失小於3.9 dB，低頻零點產生於51 GHz，高頻零點則產生於81.75 GHz，且截止區有不錯的衰減效果。
另外本論文包含兩個附錄，其中附錄A為60-GHz WPAN射頻前端系統文獻回顧，介紹兩篇已發表論文之系統研究；附錄B為57-64 GHz毫米波CMOS射頻接收機前端電路，使用國家晶片中心提供的標準TSMC CMOS 0.13 μm製程，主要介紹低雜訊放大器與帶通濾波器之共同模擬。

This thesis presents the research on CMOS RFICs and key components for millimeter-wave RF front-end. The RFICs are designed with TSMC 0.18 μm 1P6M standard CMOS fabrication process supplied by CIC.
In the first part, the properties of the millimeter-wave application for short-range high data-rate WPAN is introduced. System planning parameters for 60-GHz RF front-end including sensitivity, SNR, channel bandwidth and data-rate are derived to meet IEEE 802.15.3c standard requirements. The simple link budget of the 60-GHz WPAN system is shown.
The second part of this thesis is about the design and measurement of CMOS RFICs and key components. Marchand balun with an output matching network is designed. The fabricated CMOS balun uses multilayer coupling with the top two layers to enhance the coupling factor. A technique for achieving good balance with the fourth metal layer microstrip conductor is used in the designed balun. The measured amplitude imbalance is about ±1.5 dB with a corresponding phase difference about ±10o from 25 to 65 GHz , over the 89 % operating frequency band.
The two stage cascade common source LNA takes account of the low power issue to choose the size of the transistors. The source degeneration inductor and all traces are simulated by Ansoft HFSS and Sonnet. Agilent ADS is used to integrate the co-simulation design. Measurement results at 20 GHz：when supply voltage is 1.2 V, total power consumption is 9.6 mW, gain is 9.3 dB, noise figure is 4.4 dB; when supply voltage is 1.0 V, total power consumption is 7.0 mW, gain is 8.5 dB, noise figure is 4.6 dB. The ACMRC structure is used to design the filter with two avalible zero frequencies. The input and output capacitors using multilayer coupling are added to create the passband of the filter. The size of the chip is 0.85 mm 0.64 mm, and the size of the ACMRC structure is 0.45 mm × 0.27 mm. The measured insertion loss is less then 3.9 dB from 61 to 68 GHz. And the two zero frequencies are measured at 51 GHz and 81.75 GHz.
In addition, the paper survey of the 60-GHz WPAN system and the design of the 60-GHz RF front-end including antenna, filter and LNA are appendixed.

[1]邱佳松、黃國威、陳坤明，“超寬頻無線通訊技術概論”，2003年11月第20期電子與材料雜誌。
[2]A. Bourdoux, J. Nsenga, W. V. Thillo, F. Horlin and L. V. d. Perre, “Air Interface and Physical Layer techniques for 60 GHz WPANs,” Communications and Vehicular Technology Symposium, pp. 1-6, Nov. 2006.
[3]B. Sklar, Digital Communications: Fundamental and Applications, 2nd edition, Prentice Hall, pp. 249, 2001.
[4]S. P. Voinigescu, M. Gordon, C. Lee, T. Yao, A. Mangan and K. Yau, “System-on-Chip Design Beyond 50 GHz,” System-on-Chip for Real-time Applications International Workshop, pp. 10-13, Jul. 2005.
[5]D. R. Vizard, “Millimeter-wave Applications：From Satellite Communications to Security Systems,” Microwave Journal, Vol. 49, No. 7, pp. 22, Jul. 2006.
[6]陳乃塘，“千兆位元高速無線通訊成真，毫米波應用來勢洶洶”，2006年11月號新通訊元件雜誌。
[7]林山霖，“UWB發達之路，價格為唯一擋路的石頭”，2005年2月號新通訊元件雜誌。
[8]莊郁民，“超寬頻技術發展剖析”，2005年11月第3期系統晶片SoC Technical Journal。
[9]D. Cabric, M. S. W. Chen, D. A. Sobel, S. Wang, J. Yang and R. W. Brodersen, “Novel Radio Architectures for UWB, 60GHz, and Cognitive Wireless Systems,” EURASIP Journal on Wireless Communication and Networking, pp. 1-18, 2006.
[10]賴俊佑，“IEEE 802.15 標準會議最新動態—July 16-21 2005, San Francisco”，工研院電通所，2005年7月。
[11]賴俊佑，“IEEE 802.15 標準會議最新動態—Nov. 13-18 2005, 加拿大溫哥華”，工研院電通所，2005年11月。
[12]Federal Communications Commission, “Amendment of Parts 2, 15 and 97 of the Commission’s Rules to Permit Use of Radio Frequencies Above 40 GHz for New Radio Applications,” FCC 95-499, ET Docket No. 94-124, RM-8308, Dec. 1995.
[13]http://www.ieee802.org/15/pub/TG3c.html
[14]P. Smulders, “Exploiting the 60 GHz Band for Local Wireless Multimedia Access：Prospects and Future Directions,” IEEE Communications Magazine, Vol. 40, No. 1, pp. 140-147, Jan. 2002.
[15]E.Grass, F. Herzel, M.Piz, Y. Sun, and R. Kraemer, “Implementation Aspects of Gbit/s Communication System for 60 GHz Band,” Wireless World Research Forum, Jul. 2005.
[16]E.Grass, M. Piz, F. Herzel, and R. Kraemer, “IEEE 802.15 Working Group for Wireless Personal Area Networks,” IEEE 802.15 Working Group for Personal Area Networks, Document IEEE 802.15-05/0634r0, Nov. 2005.
[17]G. Fettweis and R. Irmer, “WIGWAM：system concept development for 1 Gbit/s air interface,” Wireless World Research Forum, Jul. 2005.
[18]P. F. M. Smulders, “60 GHz radio: prospects and future directions,” Communications and Vehicular Technology Symposium, Nov. 2003.
[19]H. Xu, V. Kukshya and T. S. Rappaport, “Spatial and Temporal Characteristics of 60-GHz Indoor Channels,” IEEE Journal on Selected Areas in Communications, Vol. 20, No. 3, pp. 620-630, Apr. 2002.
[20]A. Akeyama, “Study on mmWave Propagation Characteristics to Realize WPANs,” IEEE 802.15 Working Group for Personal Area Networks, Document IEEE 802.15 -04/0094r0, Mar. 2004.
[21]林福林，數位通訊射頻量測與模擬，南台科技大學上課講義，2006年。
[22]S. Haykin, Communication Systems, 4th edition, John Wiley & Sons, 2001.
[23]B. Razavi, “A 60-GHz CMOS Receiver Front-End,” IEEE Journal of Solid-State Circuits, Vol. 41, No. 1, pp. 17-22, Jan. 2006.
[24]H. Zirath, T. Masuda, R. Kozhuharov and M. Ferndahl, “Development of 60-GHz Front-End Circuits for a High-Data-Rate Communication System,” IEEE Journal of Solid-State Circuits, Vol. 39, No. 10, pp. 1640-1649, Oct. 2004.
[25]S. E. Gunnarsson, C. Karnfelt, H. Zirath, R. Kozhuharov, D. Kuylenstierna, A. Alping and C. Fager, “Highly Integrated 60 GHz Transmitter and Receiver MMICs in a GaAs pHEMT Technology,” IEEE Journal of Solid-State Circuits, Vol. 40, No. 11, pp. 2174-2186, Nov. 2005.
[26]Y. Sun, S. Glisic, and F. Herzel, “A Fully Differential 60 GHz Receiver Front-End with Integrated PLL in SiGe:C BiCMOS,” 1st European Microwave Integrated Circuits Conference, pp. 198-201, Sep. 2006.
[27]Y. Sun, F. Herzel, L. Wang, J. Borngraber, W. Winkler and R. Kraemer, “An Integrated 60 GHz Receiver Front-End in SiGe:C BiCMOS,” Silicon Monolithic Integrated Circuits in RF Systems, pp. 269-272, Jan. 2006.
[28]B. A. Floyd, S. K. Reynolds, U. R. Pfeiffer, T. Zwick, T. Beukema, and B. Gaucher, “SiGe Bipolar Transceiver Circuits Operating at 60 GHz,” IEEE Journal of Solid-State Circuits, Vol. 40, No. 1, pp. 156-167, Jan. 2005.
[29]K. Ohata, K. Maruhashi, M. Ito, S. Kishimoto, K. Ikuina,T. Hashiguchi, N. Takahashi and S. Iwanaga, “Wireless 1.25Gb/s Transceiver Module at 60 GHz-Band,” IEEE International Solid-State Circuits Conferences, Vol. 1, pp. 298-300, Feb. 2002.
[30]T. Pollet, M. V. Bladel and M. Moeneclaey, “BER Sensitivity of OFDM Systems to Carrier Frequency Offset and Wiener Phase Noise,” IEEE Transactions on Communications, Vol. 43, No. 234, pp. 191-193, 1995.
[31]A. G. Armada and M. Calvo, “Phase Noise and Sub-Carrier Spacing Effects on the Performance of an OFDM Communication System,” IEEE Communication Letters, Vol. 2, No. 1, pp. 11-13, Jan. 1998.
[32]R. V. Nee and R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000.
[33]N. Guo, R. C. Qiu, S. S. Mo and K.Takahashi, “60-GHz Millimeter-Wave Radio：Principle, Technology, and New Results,” EURASIP Journal on Wireless Communication and Networking, 2007.
[34]H.-K. Kim, K. S. Ahn and H. K. Baik, “Phase Noise Suppression Algorithm for OFDM-Based 60 GHz WLANs,” Wireless Pervasive Computing Symposium, Jan. 2006.
[35]郭士偉，無線通訊平面式天線及CMOS射頻晶片嵌入式天線之設計研究，國立成功大學電腦與通訊工程研究所碩士論文，民國九十四年。
[36]C. Viallon, E. Tournier, J. Graffeuil and T. Parra, “An Original SiGe Active Differential Output Power Splitter for Millimetre-wave Applications,” 33rd European Microwave Conference, Vol. 1, pp. 1-4, Oct. 2003.
[37]M. Kawashima, T. Nakagawa and K. Araki, “A Novel Broadband Active Balun,” 33rd European Microwave Conference, Vol. 2, pp. 495-498, Oct. 2003.
[38]H. Koizumi, S. Nagata, K. Tateoka, K. Kanazawa and D. Ueda, “A GaAs Single Balanced Mixer MMIC with Built-in Active Balun for personal Communication Systems,” IEEE Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 77-80, May 1995.
[39]A. M. Pavio and A. Kikel, “A Monolithic or Hybrid Broadband Compensated Balun,” IEEE MTT-S International Microwave Symposium Digest, Vol. 1, pp. 483-486, May 1990.
[40]S. J. Parisi, “180o Lumped Element Hybrid,” IEEE MTT-S International Microwave Symposium Digest, Vol. 3, pp. 1243-1246, Jun. 1989.
[41]N. Marchand, “Transmission-Line Conversion Transformers,” Electronics, Vol. 17, No. 12, pp. 142-145, Dec. 1944.
[42]張盛富、戴明鳳，無線通信之射頻被動電路設計，全華科技圖書股份有限公司，民國八十七年。
[43]張盛富，射頻與微波電路設計，國立中正大學上課講義，2004年。
[44]J. Reed and G. J. Wheeler, “A Method of Analysis of Symmetrical Four-Port Networks,” IEEE Transactions on Microwave Theory and Techniques, Vol. 4, No. 4, pp. 246-252, Oct. 1956.
[45]R. Mongia, I. Bahl and P. Bhartia, RF and Microwave Coupled-Line Circuits, Artech House, 1999.
[46]C.-M. Tsai and K. C. Gupta, “A Generalized Model for Coupled Lines and its Applications to Two-Layer Planar Circuits,” IEEE Transactions on Microwave Theory and Techniques, Vol. 40, No. 12, pp. 2190-2099, Dec. 1992.
[47]R. Schwindt and C. Nguyen, “Computer-Aided Analysis and Design of a Planar Multilayer Marchand Balun,” IEEE Transactions on Microwave Theory and Techniques, Vol. 42, No. 7, pp. 1429-1434, Jul. 1994.
[48]K. S. Ang and I. D. Robertson, “Analysis and Design of Impedance-Transforming Planar Marchand Baluns,” IEEE Transactions on Microwave Theory and Techniques, Vol. 49, No. 2, pp. 402-406, Feb. 2001.
[49]M. Chongcheawchamnan, C. Y. Ng, K. Bandudej, A. Worapishet and I. D. Robertson, “On Miniaturization Isolation Network of an All-Ports Matched Impedance-Transforming Marchand Balun,” IEEE Microwave and Wireless Components Letters, Vol. 13, No. 7, pp. 281-283, Jul. 2003.
[50]K. S. Ang, Y. C. Leong, and C. H. Lee, “Multisection Impedance-Transforming Coupled-Line Baluns,” IEEE Transactions on Microwave Theory and Techniques, Vol. 51, No. 2, pp. 536-541, Feb. 2003.
[51]D. M. Pozar, Microwave Engineering, John Wiley & Sons, 1998.
[52]K. W. Hamed, A. P. Freundorfer and Y. M. M. Antar, “A Monolithic Double-Balance Direct Conversion Mixer with an Integrated Wideband Passive Balun,” IEEE Journal of Solid-State Circuits, Vol. 40, No. 3, pp. 622-629, Mar. 2005.
[53]Z.-Y. Zhang, Y.-X. Guo, L. C. Ong and M. Y. W. Chia, “A New Planar Marchand Balun,” IEEE MTT-S International Microwave Symposium Digest, pp. 1207-1210, Jun. 2005.
[54]M. Chongcheawchamnan, C. Y. Ng and I. D. Robertson, “Miniaturised and Multilayer Wilkinson Divider and Balun for Microwave and Millimeter-wave Applications,” 6th IEEE High Frequency Postgraduate Student Colloquium, pp. 174-179, Sep. 2001.
[55]K. S. Ang, I. D. Robertson, K. Elgaid and I. G. Thayne, “40 to 90 GHz Impedance-Transforming CPW Marchand Balun,” IEEE MTT-S International Microwave Symposium Digest, Vol. 2, pp. 1141-1144, Jun. 2000.
[56]J.-L. Chen, S.-F. Chang and B.-Y. Laue, “A 20-40 GHz Monolithic Doubly-Balanced Mixer using Modified Planar Marchand Baluns,” Asia-Pacific Microwave Conference, Vol. 1, pp. 131-134, Dec. 2001.
[57]J. Schellenberg and H. Do-Ky, “Low-Loss, Planar Monolithic Baluns for K/Ka-Band Applications,” IEEE MTT-S International Microwave Symposium Digest, Vol. 4, pp. 1733-1736, Jun. 1999.
[58]A. N. Karanicolas, “A 2.7-V 900-MHz CMOS LNA and Mixer,” IEEE Journal of Solid-State Circuits, Vol. 31, No. 12, pp. 1939-1944, Dec. 1996.
[59]C.-Y. Cha and S.-G. Lee, “A Low Power, High Gain LNA Topology,” 2nd International Microwave and Millimeter Wave Technology Conference, pp. 420-423, Sep. 2000.
[60]M.-D. Tsai, R.-C. Liu, C.-S. Liu and H. Wang, “A Low-Voltage Fully-Integrated 4.5-6-GHz CMOS Variable Gain Low Noise Amplifier,” 33rd European Microwave Conference, pp. 13-16, Oct. 2003.
[61]T. K. K. Tsang and M. N. El-Gamal, “Gain Controllable Very Low Voltage (sub 1 V) 8-9 GHz Integrated CMOS LNAs,” IEEE Radio Frequency Integrated Circuits Symposium, pp. 205-208, Jun. 2002.
[62]S. Y. Yue, D. K. Ma and J. R. Long, “A 17.1-17.3-GHz Image-Reject Downconverter with Phase-Tunable LO using 3× Subharmonic Injection Locking,” IEEE Journal of Solid-State Circuits, Vol. 39, No. 12, pp. 2321-2332, Dec. 2004.
[63]朱元凱，應用於802.11a WLAN之5 GHz U-NII 頻帶降頻器 CMOS RFIC，國立成功大學電機工程研究所碩士論文，民國九十一年。
[64]T. H. Lee, The Design of CMOS Radio-frequency Integrated Circuits, Cambridge University Press, 1998.
[65]B. Razavi, Design of Analog CMOS Integrated Circuits, McGraw Hill, 2001.
[66]D. K. Shaeffer and T. H. Lee, “A 1.5-V, 1.5-GHz CMOS Low Noise Amplifier,” IEEE Journal of Solid-State Circuits, Vol. 32, No. 5, pp. 745-759, May 1997.
[67]W. Guo and D. Huang, “Noise and Linearity Optimization Methods for A 1.9-GHz Low Noise Amplifier,” 3rd International Microwave and Millimeter Wave Technology Conference, pp. 923-927, Aug. 2002.
[68]B. Jung, A. Gopinath and R. Harjani, “A Novel Noise Optimization Design Technique for Radio Frequency Low Noise Amplifiers,” International Circuits and Systems Symposium, Vol. 1, pp. 209-212, May 2003.
[69]鐘豪文，超寬頻UWB無線射頻收發機之寬頻CMOS RFICs的設計研究，國立成功大學電腦與通信工程研究所碩士論文，民國九十五年。
[70]S.-C. Shin, M.-D. Tsai, R.-C. Liu, K.-Y. Lin and H. Wang, “A 24-GHz 3.9-dB NF Low-Noise Amplifier using 0.18 μm CMOS Technology,” IEEE Microwave and Wireless Components Letters, Vol. 15, No. 7, pp. 448-450, Jul. 2005.
[71]S. P. Voinigescu, T. O. Dickson, R. Beerkens, I. Khalid and P.Westergaard, “A Comparison of Si CMOS, SiGe BiCMOS, and InP HBT Technologies for High-Speed and Millimeter-Wave ICs,” Silicon Monolithic Integrated Circuits in RF Systems, pp. 111-114, Sep. 2004.
[72]H.-O. Vickes, M. Ferndahl, A. Masud and H. Zirath, “The Influence of The Gate Leakage Current and The Gate Resistance on The Noise and Gain Performances of 90-nm CMOS for Micro- and Millimeter-Wave Frequencies,” IEEE MTT-S International Microwave Symposium Digest, Vol. 2, pp. 971-974, Jun. 2004.
[73]X. Guan and A. Hajimiri, “A 24-GHz CMOS Front-End,” IEEE Journal of Solid-State Circuits, Vol. 39, No. 2, pp. 368-373, Feb. 2004.
[74]K.-W. Yu, Y.-L. Lu, D.-C. Chang, V. Liang and M. F. Chang, “K-Band Low-Noise Amplifiers using 0.18 μm CMOS Technology,” IEEE Microwave and Wireless Components Letters, Vol. 14, No. 3, pp. 106-108, Mar. 2004.
[75]M. A. Masud, H. Zirath, M. Ferndahl and H.-O. Vickes, “90 nm CMOS MMIC Amplifier,” IEEE Radio Frequency Integrated Circuits Symposium, pp. 201-204, Jun. 2004.
[76]M. Bao, H. Jacobsson, L. Aspemyr, A. Mercha and G. Carchon, “A 20GHz sub-1V Low Noise Amplifier and a Resistive mixer in 90 nm CMOS technology,” Asia-Pacific Microwave Conference, Vol. 5, Dec. 2005.
[77]M. Makimoto and S. Yamashita, “Compact Bandpass Filters using Stepped Impedance Resonators,” Proceedings of the IEEE, Vol. 67, No. 1, pp. 16-19, Jan. 1979.
[78]M. Makimoto and S. Yamashita, “Bandpass Filters using Parallel Coupled Stripline Stepped Impedance Resonators,” IEEE Transactions on Microwave Theory and Techniques, Vol. 28, No. 12, pp. 1413-1417, Dec. 1980.
[79]L. G. Maloratsky, “Reviewing the Basics of Microstrip Lines,” Microwave & RF, pp. 79-88, Mar. 2000.
[80]F.-R. Yang, K.-P. Ma, Y. Qian and T. Itoh, “A Uniplanar Compact Photonic-Bandgap(UC-PBG) Structure and its Applications for Microwave Circuits,” IEEE Transactions on Microwave Theory and Techniques, Vol. 47, No. 8, pp. 1509-1514, Aug. 1999.
[81]Q. Xue, K. M. Shum and C. H. Chan, “Novel 1-D Microstrip PBG Cells,” IEEE Microwave and Guided Wave Letters, Vol. 10, No. 10, pp. 403-405, Oct. 2000.
[82]Q. Xue, Y. F. Liu, K. M. Shum and C. H. Chan, “A Study of Compact Microstrip Resonant Cells with Applications in Active Circuits,” Microwave and Optical Technology Letters , Vol. 37, No. 2, pp. 158-162, Apr. 2003.
[83]Q. Xue, K. M. Shum and C. H. Chan, “Novel Oscillator Incorporating a Compact Microstrip Resonant Cell,” IEEE Microwave and Wireless Components Letters, Vol. 11, No. 5, pp. 202-204, May 2001.
[84]S.-L. S. Yang, Q. Xue and K.-M. Luk, “A Wideband Low Noise Amplifier Design Incorporating the CMRC Circuitry,” IEEE Microwave and Wireless Components Letters, Vol. 15, No. 5, pp. 315-317, May 2005.
[85]Q. Xue, K. M. Shum and C. H. Chan, “Low Conversion-Loss Fourth Subharmonic Mixers Incorporating CMRC for Millimeter-Wave Applications,” IEEE Transactions on Microwave Theory and Techniques, Vol. 51, No. 5, pp. 1449-1454, May 2003.
[86]K. M. Shum, Q. Xue and C. H. Chan, “A Novel Microstrip Ring Hybrid Incorporation a PBG Cell,” IEEE Microwave and Wireless Components Letters, Vol. 11, No. 6, pp. 258-260, Jun. 2001.
[87]K. M. Shum, T. T. Mo, Q. Xue and C. H. Chan, “A Compact Bandpass Filter with Two Tuning Transmission Zeros using a CMRC Resonator,” IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 3, pp. 895-900, Mar. 2005.
[88]http://hftc.ndl.org.tw
[89]M.-G. Lee, T.-S. Yun, K.-B. Kim, D.-H. Shin, T.-J. Baek and J.-C. Lee, “Design of Millimeter-wave Bandpass Filters with λg/4 Short Stubs using GaAs Surface Micromatchining,” 35th European Microwave Conference, Vol. 2, Oct. 2005.
[90]M.-F. Lei and H. Wang, “Implementation of Reducing-Size Dual-Mode Ring Filters in LTCC and MMIC Processes at Millimeter Wave Frequencies,” 36th European Microwave Conference, pp. 537-540, Sep. 2006.
[91]B. Dehlink, M. Engl, K. Aufinger and H. Knapp, “Integrated Bandpass Filter at 77 GHz in SiGe Technology,” IEEE Microwave and Wireless Components Letters, Vol. 17, No. 5, pp. 346-348, May 2007.
[92]C.-Y. Hsu, H.-R. Chuang and C.-Y. Chen, “Design of 60-GHz Millimeter-Wave CMOS RFIC-on-Chip Bandpass filter,” 37th European Microwave Conference, Oct. 2007.
[93]C. H. Doan, S. Emami, A. M. Niknejad, R. W. Brodersen, “Millimeter-Wave CMOS Design,” IEEE Journal of Solid-State Circuit, Vol. 40, No. 1, pp. 144-155, Jan. 2005