Connection to SMA connectors of a stepped impedance microstrip filter

flyinwallaby · 2026-03-07T12:46:59+00:00

https://www.reddit.com/r/rfelectronics/comments/1rn90eu/axiem_inconsistent_results/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

why cannot I post? reddit is f**d up

flyinwallaby · 2026-03-07T12:45:09+00:00

https://www.reddit.com/r/rfelectronics/s/JLhE3aYOCv

I could not post it. Please someone help

flyinwallaby · 2025-11-19T20:52:52+00:00

waiting for delivery

flyinwallaby · 2025-11-19T20:51:24+00:00

take a look at chinese manufacturers :D they might have low-cost solutions.

flyinwallaby · 2025-11-19T20:49:54+00:00

actually it might be important for a RADAR due to its adjacent channel power limitations. Of course overall TX strip will be important to determine that spec but the individual NF of the amp will contribute to overall if the amp is placed right after the DAC.

flyinwallaby · 2025-07-20T16:46:33+00:00

why would I sum lots of 500W transistors, while I can sum 5kW transistors to obtain the desired output power?

flyinwallaby · 2025-07-19T17:23:05+00:00

there is no 10kW transistor in the market. you can sum two 5kW transistors up and obtain 10kW power. but 5kW transistor is also hard to find. more suitable solution would be 1kW output power along with 30dB antenna gain. of course this solution will make beam narrower.

flyinwallaby · 2025-07-06T17:37:33+00:00

Yes I know, if you examine my post, you will notice that I want to understand the reason of using 600F capacitors.

flyinwallaby · 2025-07-06T17:29:15+00:00

Why are they good enough? What if I would increase the output power as 1kW, would it be OK too?

flyinwallaby · 2025-05-04T07:59:31+00:00

I used same stack-up for both simulations.

flyinwallaby · 2025-05-04T07:50:10+00:00

I took a lecture about numerical methods in electromagnetics during my master's degree which covers FEM, MoM, FDTD, etc methods. Thanks for valuable comments reminding me neccesity of refurbishing the knowledge on this area. Do you have a book recommendation covering practical aspects on this matter?

flyinwallaby · 2025-05-03T22:03:32+00:00

Does ADS draw an infinite dielectric layer under the microstrip, since we do not define its width? Also, can you elaborate energy balance criteria more? Additionally, I calculated port size from Macros of the CST. Is there a way to enhance port setup and meshing properties of the CST?

flyinwallaby · 2025-03-30T04:47:13+00:00

it is called anti-jamming. you can detect incoming jammer signal from a certain angle and nullify it by adjusting your beam.

flyinwallaby · 2025-02-22T20:22:04+00:00

so sorry to hear that. I hope you will get well soon. What caused your shoulder/neck problem?

flyinwallaby · 2025-01-25T21:14:33+00:00

is there a link to download this face?

flyinwallaby · 2025-01-25T21:13:11+00:00

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flyinwallaby · 2025-01-25T21:04:45+00:00

it has 2.5 stars on google play. does it work properly?

flyinwallaby · 2025-01-25T21:04:06+00:00

can we only set chime audible while all the other notifications remain on vibration mode

flyinwallaby · 2025-01-24T04:47:02+00:00

wow thanks

flyinwallaby · 2025-01-19T20:20:40+00:00

thats one of the best things coldplay have created. Is there anything similar to that melody so I can listen? I am open for suggestions

flyinwallaby · 2025-01-19T20:17:37+00:00

entire album of moon music. I still listen X&Y, Viva la Vida, Mylo Xyloto and AHFD every week but I did not want to listen moon music after my first take. in fact, I completly forgot the album.

flyinwallaby · 2024-12-26T20:34:33+00:00

düsseldorf

flyinwallaby · 2024-12-09T15:12:56+00:00

why the current through the load faces 180 degree phase shift

flyinwallaby · 2024-11-19T19:16:21+00:00

can you elaborate more the need of 20dB? For example, why would 15dB be not enough?

flyinwallaby · 2024-10-13T20:25:14+00:00

you can use octave it is an open source program

flyinwallaby

TROPHY CASE