Zobrazeno 1 - 10
of 39
pro vyhledávání: '"H.J. Siweris"'
Autor:
A. Werthof, L. Verweyen, G. Bock, T. Grave, W. Kellner, H. Tischer, A. Schafer, U. Schaper, Michael Schlechtweg, H.J. Siweris
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 46:2560-2567
A chip set for millimeter-wave sensor applications, especially automotive radar systems, is described. It consists of a highly integrated transceiver chip, a voltage controlled oscillator, a harmonic mixer and a medium power amplifier. The MMICs oper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77e4cb68f028fa96800f3b255fd11c52
https://doi.org/10.1109/22.739248
https://doi.org/10.1109/22.739248
Autor:
H.J. Siweris, H. Tischer
Publikováno v:
IEEE MTT-S International Microwave Symposium Digest, 2003.
A balanced HEMT mixer for 76-77 GHz car radar applications has been designed and fabricated on a 6 inch GaAs production line. The monolithic circuit has a very small chip size of only 0.56 mm/sup 2/. With 2 dBm of LO power, a conversion loss below 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe7ad23ae93e5e50113daa1b081431e0
https://doi.org/10.1109/mwsym.2003.1210898
https://doi.org/10.1109/mwsym.2003.1210898
Publikováno v:
2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278).
Two complex transmit MMICs have been developed for the conversion of a 38 GHz VCO signal to 76 GHz. They consist of a 38 GHz driver amplifier, a frequency doubler and 76 GHz output amplifiers. These MMICs achieve a saturated output power of 14 dBm at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e673d93d851aed5b2c2622567858b5c9
https://doi.org/10.1109/mwsym.2002.1012224
https://doi.org/10.1109/mwsym.2002.1012224
Publikováno v:
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282).
A monolithic voltage-controlled oscillator for automotive radar systems operating in the 76-77 GHz frequency range has been developed. The circuit is based on a feedback topology and consists of a two-stage amplifier, a power divider, and a voltage-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d095d7e2b4fea37892d06754d714298
https://doi.org/10.1109/mwsym.1999.779415
https://doi.org/10.1109/mwsym.1999.779415
Autor:
M. Karner, J.-E. Muller, L. Schleicher, H. Riechert, L. Verweyen, H.J. Siweris, T. Meier, T. Grave, A. Bangert, H. Tischer, A. Schafer, W. Kellner
Publikováno v:
GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium. 18th Annual Technical Digest 1996.
A 77 GHz automotive radar system for collision avoidance and intelligent cruise control has recently gained interest because of its huge market potential. The questions of the optimum technological and system approaches leading to both low cost and h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a109d77ec3eb5d17e4d74fa8ca54f365
https://doi.org/10.1109/gaas.1996.567866
https://doi.org/10.1109/gaas.1996.567866
Publikováno v:
2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157).
A set of coplanar 38 GHz voltage-controlled oscillators has been developed. The oscillators are based on a feedback topology and consist of a two-stage amplifier, a frequency selective feedback network, and a voltage-controlled phase shifter. The mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f5b6fb756f86e270a4f9f85bd8099e9
https://doi.org/10.1109/mwsym.2001.967199
https://doi.org/10.1109/mwsym.2001.967199
Publikováno v:
2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096).
A chip set consisting of three GaAs HEMT MMICs (voltage-controlled oscillator, medium power amplifier, subharmonic mixer) and a discrete Si Schottky mixer diode has been developed for 77 GHz automotive radar systems. It facilitates the realization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f51270c3f61b3fb3880995e6b0f58f3
https://doi.org/10.1109/rfic.2000.854446
https://doi.org/10.1109/rfic.2000.854446
Autor:
T. v. Kerssenbrock, H.J. Siweris, W. Kellner, T. Meier, C. Schmelz, H. Tischer, Werner Bogner, Patric Heide
Publikováno v:
28th European Microwave Conference, 1998.
In this paper the design of a W-band flip-chip (FC) sensor module is presented. The module incorporates two MMICs, a voltage controlled oscillator and a transceiver/receiver. Coplanar waveguides are used on the MMICs and the substrate. The FC interco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a4c8159063e7e9cb9417a6595d8a6a
https://doi.org/10.1109/euma.1998.338056
https://doi.org/10.1109/euma.1998.338056
Publikováno v:
1998 28th European Microwave Conference.
A three-stage monolithic feedback amplifier has been developed, The MMIC was fabricated on 3-inch GaAs substrates using a production-oriented HEMT technology. The active devices have a gate length of 0.18 ?m and a cut-off frequency of about 60 GHz. O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcb0cfe2ea9345f7265ac4ae175d3e43
https://doi.org/10.1109/euma.1998.338064
https://doi.org/10.1109/euma.1998.338064
Autor:
W. Reinert, H. Tischer, W.H. Haydl, L. Verweyen, Michael Schlechtweg, Axel Hulsmann, W. Kellner, T. Meier, H. Massier, M. Neumann, A. Werthof, U. Schaper, H.J. Siweris, R. Osorio, S. Kudszus
Publikováno v:
1998 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.98CH36182).
Integrated transceive MMICs for automotive applications were realized in coplanar waveguide technology, using a 0.15 /spl mu/m PM-HEMT process. Based on an analytical nonlinear HEMT model, harmonic balance simulations of the entire chip, comprising u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bb6eb18b7ca4caa3ea0c7a6cc64b666
https://doi.org/10.1109/rfic.1998.682042
https://doi.org/10.1109/rfic.1998.682042