Electronics
Honeywell DME Transponder L Band Power Transistors MSC 1004MP Avionics 1090 MHz
Research Links PDF: 1004MP 4 Watts, 35 Volts Pulsed Avionics, 960 to 1215 MHz – Originally from here
Electronics
Microwave Oven Debugging
Research Links Notes on the Troubleshooting and Repair of Microwave Ovens || +————————+ ||( 3.3 VAC, 10 A, typical | TP Relay or || +————+——+FA F| Magnetron _ I I __ Triac || | +-|—-|-+ o— _—/ –+—/ — —-/ —-+ || +——||—-+ | |_ _| | | )||( HV Read more…
Design Tools
LTSPICE: Dual Modulus 8 9 Current Mode Prescaler Files – Complete Set with IBM 65nM Files Adapted from MOSIS
LTSPICE: 8/9 Current Mode Prescaler Files – Complete Set with IBM 65nM Files Adapted from MOSIS http://www.amarketplaceofideas.com/wp-content/uploads/2014/12/LTSPICE-Current-Mode-Prescaler-65-nM-IBM.7z
Electronics
Smith Chart Q FootBalls
If you plot a curve of constant ratio of Impedance / Resistance you will see that they plot out football shaped areas on the Smith Chart. See below: If you are attempting to design the widest band match possible then do not violate the initial footbal in which your load Read more…
Microstrip
The HP Half Wave 50 ohm transmission line trick
If your 50 ohm microstrip transmission line varies somewhat in impedance when you are connecting 2 50 Ohm elements together you can use a 1/2 wave length of line in between the blocks if space is available and the design is narrow band. What will happen in a full spin around Read more…
Electronics
Using WinSmith Program to Design Matching Circuit of 900MHz ISM Band Power Amplifier
WinSmith is a Smith chart match calculating program. The starting point is 8 – j16 ohms @ 915MHz. Both the blue and the green curves start at this point at the lower left of the curves. Click on the image to see a bigger version What is interesting about the Read more…
BroadCom Integrated Circuits
Broadcom is not very good at putting out data sheets on their parts. My first line of interest is their point to point radio IC solutions. Research Links Point to Point RF/Microwave Backhaul solutions Baseband processing to bits BroadCom product line overview PDFp Backhaul / Point to Point Radio Read more…