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On-Chip RF Transformer Performance Improvement Technique | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 28, Issue 4, 2010, Pages 676-685 PDF (190.99 K) | ||
| DOI: 10.30684/etj.28.4.4 | ||
| Authors | ||
| Ahmed Saadoon Ezzulddin; Mohammed Hussain Ali; Mutaz Shunasi Abdulwahab | ||
| Abstract | ||
| In this work, a proposed on-chip radio-frequency (RF) transformer design and layout technique is presented to achieve high magnetic coupling coefficient and low insertion loss by segmenting and interleaving wide primary and secondary metal traces. Additional advantage of such technique is the mitigation of proximity effect and current crowding. The proposed technique is verified and tested for a square transformer, with different segmentation structures, using EMSight simulator of Microwave Office 2007 (version 7.5) RF/Microwave software tools. By using this design and layout technique, the magnetic coupling coefficient improves from 0.49 to over 0.72 and lowers the minimum insertion loss from 1.56 dB to 1.18 dB at 4.5 GHz center frequency. | ||
| Keywords | ||
| chip RF transformer; square transformer; balun transformer; performance improvement technique; magnetic coupling coefficient; insertion loss; segmenting and interleaving wide metal traces | ||
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