An Integrated Detection Circuit for Transmission Coefficients

Ming Che Lee, Chi Yo Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


As the applications of radio-frequency (RF) circuits continue to prosper, scattering parameters (S-parameters) play an essential role in the verification of a variety of chips. The traditional way to measure the S-parameters of RF integrated circuits (RFICs) is by using vector network analyzers (VNA). However, measuring RFICs with VNAs is very expensive and likely to reduce the profits of IC products. An implementation of the embedded circuit for S-parameter measurement can greatly reduce the costs of using expensive VNAs. Another reason to embed the circuit for S-parameter measurement is to increase the portion of a chip that can be measured. Besides, novel technologies, such as three-dimensional ICs, will require advanced methods for on-chip verifications of RF circuits since many RF nodes may be buried deep inside a chip stack. In view of these needs, this paper proposes a simple network that can realize on-chip S21 measurements. The greatest advantages of this circuit are the easy implementation and technology independence. To verify the feasibility of the circuit, we fabricated the test chips by using the 0.18-μm IBM 7RF process. The measurement results show the expected behavior and demonstrate the feasibility of the design concept.

Original languageEnglish
Article number8941034
Pages (from-to)237-252
Number of pages16
JournalIEEE Access
Publication statusPublished - 2020


  • Radio frequency (RF)
  • S-parameters
  • automatic test equipment (ATE)
  • bandwidth
  • calibration
  • device under test (DUT)
  • divider (DIV)
  • embedded testing
  • integrated circuit (IC)
  • vector network analyzer (VNA)

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering


Dive into the research topics of 'An Integrated Detection Circuit for Transmission Coefficients'. Together they form a unique fingerprint.

Cite this