| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bc2b03342511abc88f60c63f2acd96d0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R1-06772 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R1-067 |
| filingDate |
1990-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d36330e506ee0ccc4fe66006b4f3dc4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72d09b5084f1e97484e3fc31935aea62 |
| publicationDate |
1993-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5231349-A |
| titleOfInvention |
Millimeter-wave active probe system |
| abstract |
Three classes of active probes all with coaxial inputs and coplanar waveguide probe tips are described. A millimeter-wave active probe for generating signals with frequencies about 50 gHz and supplying same to millimeter-wafer including a substrate upon which a frequency multiplier consisting of filter sections and impedance matching sections and nonlinear elements are integrated in uniplanar transmission line medium. Also disclosed is a harmonic mixer probe to step down RF received from an integrated circuit to a lower frequency by mixing it with the harmonics of a local oscillator signal. Also disclosed is an S-parameter active probe for on-wafer measurement of the S-parameters of a two port millimeter-wave device or integrated circuit by injecting millimeter-wave frequencies and simultaneously tapping off a portion of the injected signal, the transmitted signal and the reflected signal and stepping all signals down in frequency to a frequency compatible with currently available test equipment such as the HP8510 automatic network analyzer. This is the first and only all-electronic millimeter-wave on-wafer S-parameter measurement device available at present. |
| isCitedBy |
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| priorityDate |
1988-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |