 Kelvin Ly
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1d474bbd32
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Almost working LNA first and second stage; need to figure out why the second stage isn't conjugatively matching correctly
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2019-05-17 01:32:47 -04:00 |
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Kelvin Ly
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a599c25d56
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Work on LNA design; looks like minimal matching produces the best results
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2019-05-14 09:05:09 -04:00 |
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Kelvin Ly
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bc29d8c3a5
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Picked matched NPNs for IF amplifier stages
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2019-04-30 23:45:05 -04:00 |
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Kelvin Ly
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e0cf34e057
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Capture IF amplifier stages and work on LNA stages
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2019-04-28 23:56:20 -04:00 |
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Kelvin Ly
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e1d250ba8e
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Fix scattering parameter phase calculations
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2019-04-18 07:49:57 -04:00 |
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Kelvin Ly
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0721bb8db1
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Finish diode mixer simulations and capture in schematic
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2019-04-17 07:52:20 -04:00 |
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Kelvin Ly
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8af98d3163
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Finish active mixer simulation; it looks good!
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2019-04-15 08:30:11 -04:00 |
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Kelvin Ly
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4fb7daebca
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Match mixer LO input and RF output to 50 ohms
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2019-04-14 02:59:21 -04:00 |
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Kelvin Ly
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5786d3573c
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Move qucsdata to the right directory
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2019-04-13 23:27:34 -04:00 |
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Kelvin Ly
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5337f68e3e
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Copy in qucs Python files to process Qucs data in Python
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2019-04-13 23:18:44 -04:00 |
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Kelvin Ly
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2e5082f8f0
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Finish first draft of LO amplifier
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2019-04-13 18:49:50 -04:00 |
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Kelvin Ly
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b9aec35934
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LO amplifier simulation is pretty close to done; it seems like the BFU520XR will just barely do the job; compression point is >6 dBm, amplifier seems sufficiently stable
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2019-04-13 15:17:12 -04:00 |
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Kelvin Ly
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01fa8e4fd9
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Ignore QUCS-generated files
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2019-04-13 09:22:36 -04:00 |
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Kelvin Ly
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2a1839f8bb
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Add SPICE models for BFU520*
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2019-04-13 09:21:46 -04:00 |
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Kelvin Ly
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d250165add
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Start work on power amplifier stage and LO amplifier
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2019-04-13 09:21:21 -04:00 |
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Kelvin Ly
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c519479121
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Start work on schematics
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2019-04-13 09:20:46 -04:00 |
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Kelvin Ly
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9062c59230
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Add NXP BFU520 scattering parameters
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2019-03-19 01:09:50 -04:00 |
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Kelvin Ly
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59b4ee9036
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Test out cascading them to get more gain
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2019-03-19 01:09:00 -04:00 |
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Kelvin Ly
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9f7bc578b4
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Work on power amplifier design; got the matching networks set up, and they seem to work, a part from being almost marginally unstable
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2019-03-19 01:08:36 -04:00 |