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There are numerous text books on the topic but I assume you need/want hands-on :) Why not d/l the free software from Analog Devices SimPLL. You can play with all sorts of settings and get a feeling for what happens when you alter loop filter vs. switching time and spur supression.
If you really...
Building a Yagi for 3G i.e. 2 GHz is a very very difficult task, you have to be extremely careful, and still have problems with tuning. Radio Hams have been successful in designing Yagis for 1296 MHz but even here it is difficult. Things like thickness of elements and how the boom affects the...
Not sure how deep you want to dig in... but John Kraus Antennas, 2nd edition, McGraw-Hill, 1988 should be all what you need... but to get it a little simpler
ARRL Antenna handbook used to have a good source written by Pete Rhodes K4EWG.
From this you can down load a spread sheet to design your...
s21 antenna parameter
Using S21 you will see, as you correctly assumed, the ratio between transmitted and received power. I.e. loss of feeders, gain of both antennas and the pathloss.
If you do want to charactierize the matching of your antenna, use S11 to get this
ADF4360-8 PLL
You should really register to receive the Analog PLL design program...
http://forms.analog.com/form_pages/rfcomms/adisimpll.asp
And do not forget to read the tutorials. This will tell you all you need to know on how to design a loop filter for your 120 MHz oscillator. It is...
advanced design system anosoft microwave office
I would say both ADS and MWO is pretty much similar, but they migrate from two different directions. MWO has been more towards chip design and ADS given its heritage from Touchstone, more towards circuit design. If I remember correctly Ansoft has...
Having 3:d order intermods in IF will usually not be a problem with mixing LO but it will show up in the IF as it is close to the wanted signals!
We need a lot more information abut what frequencies involved in your design if we are supposed to help!
A wide IF is *very* hard to avoid spurs...
2sc5551 ip3
2N5109 is an old favourite! Will give good IP3 in these frequency ranges. Anzac did offer a module AM-109 wich offers +40 dBm IP3, and excellent IP2 due to balanced circuit.
You can use most wide band transistors which application were for TV distribution, as it had a very high...
Welcome to the REAL world :D
As you have discovered using "real" components things do differ from the ideal types.
Use good RF components, i.e. ATC or similar and run optimize to embed the stray capacitance/inductance. You shold acheive close to ideal after a few iterations.
Then, the real...
Assume you mean the control voltage for a VCO??
The shape and rate of this voltage will define the output spectrum of your oscillator. Often the goal is equal spaced spectral energy and this will be acheived by using saw tooth shaped sweep, with shortest possible retrace. Using a triangle...
Reading the OP, there is NO need for TCXO or any other special reference if he chooses to use a PLL. If he needs 0.1% stability, this will refelct the stability of the reference, i.e. same stability needed there! Pick a 10 MHz crystal, or a redy made cheap XO it will certainly be way better than...
1 to 10-3 is not that difficult i.e. you are asking for a stability of 2-3 MHz at 2,5 GHz. Not that easy with a L/C oscillator, but a Hi-Q resionator should do it. Cavity might be one option, or a DRO (dielectric resonator), Make your own resonator with a low-loss coax (semi rigid) and a good...
GHz PLL
You need to tell us more...
What reference frequency? Switch speed ?
Range, or is it single frequency?
Simplest way is using ready made PLL IC which operates at above 4 GHz. You can get prescalers with dual modulus counting and then use simple CMOS logic.
You should have very low signals on the input pins 1 and 2.... the mixer do isolate and you have an amplifier that buffers too. It seems you have something going on at the input. If the oscillator is running (which you state) make sure input is really hooked up like datasheet, and that you...
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