Onchip 1:5 balun with center tapped secondary

[vlsi_design2]

Hi,

I want to design an onchip 1:5 balun with center tapped secondary. Can anyone suggest me books or IEEE papers?

 

[Truedeal]

Try looking up the ARRL Handbook for Amateur Radio Operators. There are many matching transformers for baluns.
What power levels will you need? I do have a contact that could help you if needed. I buy a lot of antenna equipment and baluns from him. His designs work beautifully as advertised. One antenna I just bought from him works with Low SWR from 80 meters to 6 meters flawlessly and are capable of 1500 watt RMS. The only tuner required is the limited internal unit for the ICOM IC-746 radio.

 

[volker@muehlhaus]

A comprehensive book that I can recommend for all aspects on on-chip inductors and transformers: "Integrated Inductors and Transformers" by Angelo Scuderi et al, CRC Press, ISBN 978-1-4200-8844-1

Overview paper on integrated transformers:
J. R. Long, “Monolithic transformers for silicon RF IC design,” IEEE Journal of Solid-State Circuits, vol. 35, no. 9, pp. 1368-1382, September 2000.
https://vergina.eng.auth.gr/electronicslab/el/vlsi/Transformers-Sept00.pdf

 

[vlsi_design2]

Hi Truedeal,
Thank you for your reply. I am talking about onchip baluns in silicon. I think you are pointing to offchip baluns.

 

[vlsi_design2]

Hi volker@muehlhaus,
Thank you for recommending the book and the paper.
1. I had gone through Prof. Long's paper before. Can you recommend me any paper which considers more design details like maths of designing cross-overs etc.

2. Are there CAD tools which can automatically generate layout e.g. for 1:5 balun

 

[Truedeal]

Hi Truedeal,
Thank you for your reply. I am talking about onchip baluns in silicon. I think you are pointing to offchip baluns.

Yes sir I was. I did not know that sort of thing was being done at the chip level. I have been out of the manufacturing loop since 1995.

 

[vlsi_design2]

Hi,
I am using ADS momentum for my 1: 5 balun simulation. The secondary is in top level metal. The primary is below it. I am using nport in cadence for transient simulation where I have 1V sinusoid connected. I am no where getting 1:5 gain . It is only 1: 1.2
The designed balun is similar (not exactly same) to attached figure.