High-efficiency dual-band on-chip rectenna for 35- and 94-GHz wireless power transmission in 0.13-μm CMOS technology

Hwann Kaeo Chiou, I. Shan Chen

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

This paper proposes a high-efficiency dual-band on-chip rectifying antenna (rectenna) at 35 and 94 GHz for wireless power transmission. The rectenna is designed in slotline (SL) and finite-width ground coplanar waveguide (FGCPW) transmission lines in a CMOS 0.13-μm process. The rectenna comprises a high gain linear tapered slot antenna (LTSA), an FGCPW to SL transition, a bandpass filter, and a full-wave rectifier. The LTSA achieves a VSWR=2 fractional bandwidth of 82% and 41%, and a gain of 7.4 and 6.5 dBi at the frequencies of 35 and 94 GHz. The measured power conversion efficiencies are 53% and 37% in free space at 35 and 94 GHz, while the incident radiation power density is 30 mW/cm2. The fabricated rectenna occupies a compact size of 2.9 mm2.

Original languageEnglish
Article number5618596
Pages (from-to)3598-3606
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Volume58
Issue number12 PART 1
DOIs
StatePublished - Dec 2010

Keywords

  • Dual-band rectenna
  • finite-width ground coplanar waveguide (FGCPW)
  • linear tapered slot antenna (LTSA)
  • power conversion efficiency (PCE)
  • Schottky diode
  • slotline (SL)

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