Questions tagged [microstrip]
A microstrip is a transmission line fabricated on a printed circuit board (PCB). They are much less expensive than a traditional waveguide although they typically have higher losses and less power handling capacity.
135
questions
4
votes
0
answers
98
views
Microstrip PCB Design
I am designing a microstrip PCB with frequencies ranging from 100MHz to 8GHz.
There are no significant issues at lower frequencies, but the signal loss becomes quite high as approaching 8GHz.
...
- 71
1
vote
1
answer
47
views
Impedance of different track widths - Should I compute the average width?
Assume that you having one track that goes from 0.11mm in width to 0.09mm in width.
I want to compute the impedance, but I need to select the width. What option should I select?
The largest width of ...
- 1,324
0
votes
0
answers
62
views
Capacitance on op-amp input (inverting pin)
I have the following configuration for my amplifier, which is an transimpedance amplifier:
I need to connect my transducer to the inverting pin of my amplifier by using a dip switch to be able to ...
- 657
2
votes
1
answer
153
views
How does a planar balun work (ie, microstrip <-> stripline)?
This document shows a planar microstrip/stripline balun to convert the balanced feed line input to feed the (unbalanced) dipole on a microstrip Yagi antenna.
Question: How does coupling to a tapered ...
- 2,190
0
votes
0
answers
33
views
Monomode microstrip antenna
Given a microstrip antenna with length a and width b, with a>b, I'm asked to calculate which conditions must satisfy a, b and the frequency so it's a monomode microstrip antenna.
The thing is, as ...
- 9
2
votes
1
answer
217
views
Coplanar waveguide with GND Vs. microstrip general rules
I have been fiddling around with GPS antenna trace impedance matching. I have only Saturn PCB SW to make some calculations.
I can't quite get it when microstrip starts to behave more like a coplanar ...
- 23
1
vote
0
answers
117
views
Interdigital filter ground connection on PCB
I have used an online designer utility for my 5 GHz to 6 GHz RF output filter, on the schematic it generated it had shown ground attach points, but I am not sure if I designed ground connections and ...
- 480
1
vote
0
answers
43
views
How specify rectangle size in Sonnet lite
Although not directly an electronics question, there is probably someone who can help me out.
I just started to use Sonnet lite to simulate a microstrip filter. There is one aspect, which to me seems ...
- 221
5
votes
3
answers
2k
views
Unexpected low characteristic impedance using the JLCPCB impedance calculator
I'm currently designing a PCB that is intended to fan out the 38 pins of a MICTOR connector to every other conductor of an 80-conductor ribbon cable (The PATA type one, that is AWG30 wires with a 0....
- 2,374
0
votes
0
answers
121
views
How can I attach a PCB patch antenna with microstrip feed to coax cable without soldering
I designed a patch antenna on a 1.5 mm thick substrate for 7 GHz. It has to be connected to a semi rigid coax cable. Due to the application it is meant for, I can not solder a SMA connector or the ...
- 1
1
vote
0
answers
68
views
Micro strip antenna radiation pattern
I'm designing a PCB micro strip antenna, 433.92MHz. I'm new to this and wonder, where does the antenna "start" radiating? I am trying to design the perfect length 1/4 wave for 433.92MHz (172....
- 39
1
vote
1
answer
174
views
NEO-M8N Microstrip Line Calculator
I am designing a pcb which has the module ublox NEO-M8N, However I am having trouble calculating trace widths. I am planning to use an FR-4 board. I was using the following calculator to try and ...
0
votes
0
answers
48
views
Coupled line hybrid coupler parameters
I am designing a coupled line hybrid coupler as a part of of term evaluation at my university. So from my conceptual understanding here coupled line hybrid coupler implies a coupled line coupler with ...
- 1
1
vote
0
answers
35
views
Microstrip structures identification
I'm currently starting with learning how microstrip structures work.
Just for clarification: I'm talking about these here: Microstrips
In Power dividers and directional couplers, some basic structures ...
- 43
0
votes
0
answers
55
views
Microstrip on FPC board
Do anyone know, what is the strange track on FPC board on image below?
My guess is, it is something like a microstrip track.
The image is for a FPC board, that measure cell voltage of batteries.
- 89