Millimeter-wave broadband transceivers

Millimeter-wave broadband transceivers with data rates as high as 1.5Gbps have been developed on the unlicensed 60GHz-band. A direct ASK modulation and demodulation scheme is adopted for the 60GHz-band transceiver. The Traveling Wave Switch (TWSW) as an ASK modulator and an integrated HJFET data driver realizes ultra fast 60GHz-band modulation. To enable a highly producible and compact transceiver module, CPW MMICs and planar filters are flip-chip mounted in TX and RX LTCC MCMs, which are assembled on printed wiring boards using BGA connection. 1.25Gbps full duplex wireless Gigabit Ethernet transceivers having a function to convert a 1000BASE-SX optical fiber link seamlessly to a wireless link, a 1.485Gbps uncompressed HDTV wireless transmission system and so on have been commercialized.

[1]  H. Morkner,et al.  A 60 GHz MMIC chipset for 1-Gbit/s wireless links , 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).

[2]  K. Maruhashi,et al.  1.25Gbps wireless Gigabit Ethernet link at 60GHz-band , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[3]  Li Qiang,et al.  Low Temperature Co-fired Ceramic Technology , 2002 .

[4]  K. Maruhashi,et al.  A 60 GHz-band coplanar-MMIC chipset for 500 Mbps ASK transceivers , 2000, GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuits Symposium. 22nd Annual Technical Digest 2000. (Cat. No.00CH37084).

[5]  Kenichi Maruhashi,et al.  A 60 GHz-band planar dielectric waveguide filter for flip-chip modules , 2001, IMS 2001.

[6]  Keiichi Ohata,et al.  Wireless 1.25Gb/s transceiver module at 60GHz-band , 2002 .

[7]  K. Ohata,et al.  Developments of Gigabit wireless links in Japan , 2003, 25th Annual Technical Digest 2003. IEEE Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003..

[8]  K. Ohata,et al.  60GHz-Band Flip-Chip MMIC Modules for IEEE1394 Wireless Adapters , 2001, 2001 31st European Microwave Conference.

[9]  Yoichiro Takayama,et al.  DC-110-GHz MMIC traveling-wave switch , 2000 .

[10]  Keiichi Ohata,et al.  1.25 Gbps wireless Gigabit ethernet link at 60 GHz-band , 2003, IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, 2003.

[11]  Wataru Domon,et al.  A 500Mbps 60GHz-Band Transceiver for IEEE 1394 Wireless Home Networks , 2000, 2000 30th European Microwave Conference.

[12]  K. Maruhashi,et al.  60-GHz-band dielectric waveguide filters with cross-coupling for flip-chip modules , 2002, 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).