Antenna & Circuit Co-Sim using ADS

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Manjunatha_hv

Joined: 03 Aug 2005
Posts: 716
Helped: 105
Location: INDIA

07 Oct 2005 8:42 Antenna & Circuit Co-Sim using ADS

Need specilist/expert advice on Antenna & Circuit Co-Simulation using Agilent ADS

Is it possible to co-simulate in Agilent ADS
Between HB (NonlinearCircuit schematic) with Momentum (Antenna design).

Basically I want to vary the Power Levels dynamically for my anttanna input &
monitor the radiation patterns simultaneously.

if not, is there any other tool does this job!!!

Thanx,
manju

madengr

Joined: 06 Apr 2005
Posts: 394
Helped: 84
Location: Kansas City

07 Oct 2005 18:27 Re: Antenna & Circuit Co-Sim using ADS

Practically all EM programs are linear so your absolute power level is moot, and I don't know of any that allow port excitations using harmonics. However there is no reason why the ports couldn't be fed with a harmonic source. It would be neat to see a current density animation with a square wave source. I thought about doing this by capturing each frame from a grayscale animation and then averaging the frames at each time-step together using Photoshop. Care would have to be taken to align the phases and time length correctly.

You may have to do a similar procedure. Record the tone frequencies and levels from a HB simulation, then run a series of antenna simulations for each tone. You could then take, for instance, the E-plane pattern data (must be complex and non-normalized) for each simulation and average them all together to get the full pattern.

The concept is simple but you would have to do allot of simulations to get a full 3D pattern. You wouldn't want to do it by hand so a good scripting environment is needed. You could pull this off all within in Microwave Office but since the pattern data is normalized don't forget to multiply it by your tone power.

Sounds like an interesting project.