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There is a standard MIPI for RF front end solution. (RFFE). I am thinking to get this signal with microcontroller, but the controller I know is PIC18F. I can write the command by modifying SPI with PIC18F2550, but it seems it is difficult to make it work for read command. The MIPI master or...
I am trying to generate a clock signal, and send data to control the device, with PIC18F2550.
The data starts early than the real clock signal (CLK), and there are two data (data1, data2) for each data stream circle. The time diagram of clk and data can be seen in the attachmentThe control...
How can I generate a MHz squre wave signal from PIC18F2550. As I understand, the time0 output frequency = 20MHz/4/256=19K. I have a 20MHz crystal on board, timer0 is set in 8 bit mode.
thanks,
I am using PIC18F2550 to send a data stream to the devices. The amplitude of the stream created by the PIC18F2550 is 5V, which is the same as USB power supply. How can I change the amplitude to 1.8V? The rate of data can be 20MHz. I know there is some device can do the job, but don't know the...
Hi, I have a question in how to use a 3-port transformer to match the differential device.
for example, a in the picture, the input impedance is 50ohm, the two load is 200ohm. Is the turn ratio T1=T2=0.5? I can't get a good return loss. how to select the turn ratio in this example to have a...
Hi all,
Could anyone know the conversion of 4-port s-parameter to mixed mode parameter?
the case is that I have a differential in (2 ports) and differential out (2 ports) unit. I measured the 4 port s parameter into a S4p file. This s4p is measured on a 50Ohm system. I need to convert it to...
thank you Azulykit.
I am asking how to set the waveport inside an object. usaully the hfss doesn't allow that. I find there is some explaination to solve this problem in a HFSS book, but it is comfusing and I haven't figured out how to do it.
Hi, maybe I complicated my question in my previous post. Let me ask in a simply way:
How to excite the a dipole with a multimode exication? lump port doesn't allow me to set the mode.
Who has this experience, please help.
Hi,
Could anyone show me how to add an interior wave port? As shown in the attached picture, I want to replace the lump port with a wave port. the impedance line can be the same direction.
I want to do that because the real source is a high frequency resonator made by asemiconductor device. it...
sma connector model
Can any one have SMA edge board connector model in CST or HFSS. or the meterial parameter and dimension of the SMA edge board connector?
thank you.
Added after 5 hours 22 minutes:
and how to draw a bonding wire in HFSS, not using the provided tool in HFSS. I mean a...
I am using the the regular PC. 1G memeory, 2.4GHz CPU. I can request a powerful PC or use cluster. Before that, I need to find out which one is the better.
I read the paper i attached. It talks about the Si lens. Will you make it? how do you simulate it?
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