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  LNA's S21 is not occuring at the desired frequency ???
hi i am making a dual band LNA for 2.4GHz and 1.8GHz . i am using switches (NMOS) to tune the LNA between the two frequencies. my problem is ..... when i tune the LNA to 1.8GHz , the in...

netlgc 4/5 2008/8/30 16:42
  what's the tank filter?
thanks!

mxg330 2/4 2008/8/30 17:47
  Satellite TV Broadcasting [help]
Hello everyone; I want to know about Satellite TV Broadcasting

naoge 2/7 2008/8/30 17:06
  Transmission Line Modeling
Hello members! I need to be oriented in the following case: I've been researching this months about TLM for microstripes antennas, and I found only transmision line modeling for microst...

knoxville 3/2 2008/8/30 16:56
  what is dBuV (emf) meaning?
How different they are between dBuV and dBuV (emf)? If 10 mV RF strength equal to 80 dBuV, how much dBuV(emf) it is?

mxg330 14/3 2008/8/30 16:18
  IE3D zeland 11
hi. i need to deal with Zeland 11 , IE3D.. but the problem is i have to work online or buy it, and i need to use it for 1 design only.. and working online is not a proper solution to me.. can any ...

spacebac 2/1 2008/8/30 17:17
  microwave circuit design book
i need this book, George D. Vendelin, Anthony M. Pavio, Ulrich L. Rohde, - Microwave Circuit Design Using Linear and Nonlinear Techniques, Second Edition, John Wiley & Sons, 2005 i hope ...

nnxd 2/1 2008/8/30 17:06
  Microwave and Wireless Synthesizers: Theory and Design
0471520195 Title: Microwave and Wireless Synthesizers: Theory and Design Author: Ulrich L. Rohde Publisher: Wiley-Interscience Publication Date: 1997-08-11 Number Of Pages: 656 Average Am...

stgod 2/1 2008/8/30 17:00
  Testing of Helical Antenna
I have designed and implemented 2 helical antennas. Now I wanted to test it in the labortary. The testing equipments I have is signal generator and spectrum analyzer. How can I find the gain of helica...

bubulu 3/9 2008/8/30 18:00
  Can you recommend an RFID reader and Tag in 900MHz ?
Is there any RFID reader and tag working in around 900 MHz in the market? Thanks.

wyslnhhh56 3/4 2008/8/30 17:33
  minicircuits VCO
minicircuits have two VCO groups: 1-linear tuning 2-low noise, 5V tuning for PLL IC's what is the difference? where each group is used? can we used first groups with 5V-PLL ICs?

pdang 4/5 2008/8/30 17:23
  Microwave circuit design App Notes
Find at: http://www.ansoft.com/about/academics/training_materials.cfm NandoPG

saigu 3/1 2008/8/30 18:12
  Help: tool to plot negative impedances an a smith Chart
Hi Guys! I am looking for a program which can import my s-params file from ADS and plot them on a Smith-chart with also NEGATIVE impedance values. Origin 7.0 is perfect but it does not allow for n...

wy830115 2/1 2008/8/30 18:07
  M A F I A 4
could you (any of you) do me a favour? i've installed mafia 4 but there were no examples and i find it hard to analyse any structure, so if you could plz pm me Regards,

hgping 2/3 2008/8/30 18:15
  regarding antenna gain-need urgent reply
dear all, A PIFA antenna is working in 2.2 to 2.7 GHz band with omni directional pattern. but the measured gain of the antenna is -7dBi. 1. will it be suitable for a...

zunwang 2/6 2008/8/30 16:54
  does anybody have the chematic of MMDS downconverter ?
2.4-2.6GHz input 600-800MHz output LO 1892MHz

zunwang 3/3 2008/8/30 18:00
  pls upload 802.16 standard
pls upload 802.16 standard

hgping 3/2 2008/8/30 17:54
  how to design a coaxial cavity with specific reactance slope
how to design a capacitor loaded coaxial cavity with specific reactance slope and frequency?

wy830115 2/3 2008/8/30 17:55
  vco design
a low phase noise , low cost vco design

ken7976 3/5 2008/8/30 18:14
  How can I use spice model supplied by Fab in ADS2002C?
When I include some spice file, there always occures error. Who can give me some good advices?

398338 2/3 2008/8/30 18:13
  Any difference between pre-emphasis and equalization?
I am confusing these two concepts in data transmission. Equalization term seems to be broader range. Thanks.

398338 2/3 2008/8/30 17:49
  0.18um IBM and Dong-Bu(Korean) model
Dear all, Could anyone provide some RF characterization document of CMOS 0.18um IBM and Bong-Bu foundry? Such as (i) how many metal and poly layers? (ii) TWIN or TRIP_WELL? (iii) provide RF...

398338 4/1 2008/8/30 16:58
  bow tie antenna
hi everyone anybody who could assist with papers or any material on design and construction of a simple bow tie antenna thanks in advance.

edu 5/3 2008/8/30 17:28
  FM tuner(Si4700) ??
Dear All: DOes anyone study FM tuner, like SI4700 seies product ? Because the FM tuner is embeded the loop filter,and chip size is very small.Does anyone have any comment? Or when can ...

addxjyx 3/1 2008/8/30 17:15
  Design of VCO
Any Knowledge about VCO ?

nnxd 2/10 2008/8/30 17:03
  ansoft designer tutorial
Hey I am i na bind here does anyone know where I can find a tutorial on ansoft designer on how to make a patch antenna fro mbasics please everythign I find is just transmission line stuff. Please anyo...

booksir 2/5 2008/8/30 16:37
  How to find SNR?
How to convert signal to noise ratio in terms of bit to signal to noise ratio in terms of symbol?

chdd 2/3 2008/8/30 17:52
  Connecting GND on multilayer PCB
Which one you prefer to connect GND togegher on multilayer PCB ? (1) Connecting all layers of GND by through hole (No blind/buried via) (2) Connecting all layers of GND by blind via & buried via (...

nnxd 2/7 2008/8/30 17:31
  [help] drop-in circulator installation
Hi all, I抦 wondering how to install a drop-in circulator which has a rectangle base, a cylinder, and 3 flat leads on the same plane of the base. Somebody say that a RECTANGLE hole should be cut in ...

scuzt 4/1 2008/8/30 17:41
  Want to build a basic RF TXR-RXR cct.
hi, I want to build a simple rf txt-rxr cct using uCs to demonstrate the working.

knoxville 2/3 2008/8/30 17:40
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