Questions tagged [microwave]
Microwaves are radio waves with a frequency from 300MHz to 300GHz which corresponds to a wavelength of one meter down to one millimeter. Often in RF engineering however it is used to refer to a narrower region such as 1 to 100GHz.
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Would this motor growler from a microwave oven transformer work? (Drawing included)
I want to make a growler to test motor rotors / armatures.
I want to use a microwave oven transformer, removing the secondary coil, cutting the centre out (where the two red lines are) and removing ...
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Do you need to enable Vdc for s2p simulation in ADS?
I am designing an evaluation board using MAAL-011078
Low Noise Amplifier from their 4.4-4.9GHz reference design on Page 15.
Do I need to enable 3 volts Vdc for simulation?
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Does cell phone only receive (one way communication) or receive and transmit microwaves (two way communication) during download?
Does cell phone only receive (one way communication) or receive and transmit microwaves (two way communication) during download (for example when you watch YouTube)?
Is short, what are differences in ...
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Have major manufacturers been known to wire up circuits wrong?
I took apart a Panasonic microwave for the sake of using components for projects. I know what I am doing because I have industrial engineering experience.
I did not notice it at first (hence I ran ...
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RF Analysis of a three port network
I was wondering if anyone could help me understand how to analyze an RF transmission line circuit that I saw in a design used to detect power. It is a three port network that has two transmission ...
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How to evaluate input impedance on HFSS
I have simulated a 3D structure in HFSS and the figure below shows the "schematic" of the structure: there is a two-ports network and two transmission lines connected with different ...
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What's the (seemingly) sinusoidal indentation on a microwave's oven waveguide?
This waveguide has a (my guess) sinusoidal indentation on the face opposite the magnetron's output. It seems to be roughly half a wavelenth in diameter as measured on the surface of the waveguide.
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What type of RF oscillators are used in solid state microwave ovens?
In particular, do they use Gunn oscillators with LDMOS RF amplifiers, or do they use lower frequency oscillators with frequency multipliers?
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Chebyshev bandwith filter realisation on microstrip coupled lines
i'm currently writing a diploma, in part of which i have to synthesize Chebyshev filter on microstrip coupled lines, on 6th degree and 9GGhz f0. I did it on on C and L elements using default formulas, ...
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Controlled impedance microstrip poor return loss
I have designed a microstrip PCB to confirm that my calculations are correct and roughly measure the signal loss of a 45 mm microstrip. However, the return loss (S11) seems to be very high (~-11 dB) ...
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Why does Reflection Coefficient depend characteristic impedance that isn't there?
In this system, (Z_0) is the impedance used to measure the amplifier’s S-parameters. When measured, both the source and load impedances were set to (Z_0), typically using a vector network analyzer.
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Identification: SMD Transistor marked "△T 03" , used on Galanz Microwave's Digital Programmer Circuit
I need a help in identifying this SMD transistor. It have a marking of what seems to be a logo of the letter T inside a triangle, followed with “03”. This particular transistor measures around 1.3 x 2....
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Wave reflection in connected Transmission lines
Figure 1: Three connected transmission lines
In the circuit above, three transmission lines are connected together.
Would a forward wave be ...
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S-matrix of a 3-port circular network
I have 3 sub-networks, which are described by ABCD matrices.
I connected them together to form a 3-port circular network, described as follows:
Port1 → ABCD1 → Port2
Port2 → ABCD2 → Port3
Port3 → ...
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Two-photon Raman transition via phase-locked microwave signal generator
I am trying to implement a two-photon stimulated Raman transitions between two Zeeman sublevels of Cesium(Cs), namely the (3,3) and (3,1) states. These two states will then be coupled via intermediate ...
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