Power Calibration Loop With High Accuracy of 10 dBm ±0.5 dB for a 77-GHz Radar Application

Kohtani, Masato; Kishimoto, S.; Ando, Itaru; Iwahashi, S.; Matsunaga, Kazuhiro; Arai, Tomomi; Yamaura, Shin Ichi

doi:10.1109/lssc.2020.3010254

Cited by 4 publications

(18 citation statements)

References 6 publications

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“…Care is taken to route the BIST signal around the solder bump to minimize unwanted coupling. A similar 17 dB-coupler is used in [60] in a PA power calibration loop.…”

Section: A Couplermentioning

confidence: 99%

“…Moving to digitally-assisted calibration, a piece-wise linear model with two coefficients is fitted to the common-source square-law detector in [60] as shown in Fig. 19.…”

Section: Power Calibration Against Temperaturementioning

confidence: 99%

“…FIGURE 19:Digital calibration of power detectors: Modeling the temperature behavior with two linear coefficients (from[60]). …”

mentioning

confidence: 99%

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Built-In Self-Test of Millimeter-Wave Integrated Front-End Circuits: How Far Have We Come?

Wenger,

Meinerzhagen,

Issakov

2024

IEEE Access

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With automotive radar and 5G/6G communications, mass-market applications for millimeterwave circuits in silicon technologies have been identified or established in recent years. For high-volume, millimeter-wave integrated circuits, operating roughly between 30 GHz and 300 GHz, testability is a major concern, both from an overall cost as well as a quality assurance perspective. A solution for cost effective, low-overhead test of millimeter-wave integrated circuits is the integration of built-in self-test (BIST) features into the high-frequency front-end. Because BIST is an emerging topic in high-frequency circuit design, the field is still very fragmented. A plethora of different system concepts as well as building blocks have been proposed in recent years. This paper tries to provide a comprehensive overview of the state of the art in millimeter-wave BIST in an attempt to drive the field towards identification of standardized self-test solutions.INDEX TERMS Built-in self-test, CMOS, millimeter-wave transceivers, SiGe, silicon.

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“…Care is taken to route the BIST signal around the solder bump to minimize unwanted coupling. A similar 17 dB-coupler is used in [60] in a PA power calibration loop.…”

Section: A Couplermentioning

confidence: 99%

“…Moving to digitally-assisted calibration, a piece-wise linear model with two coefficients is fitted to the common-source square-law detector in [60] as shown in Fig. 19.…”

Section: Power Calibration Against Temperaturementioning

confidence: 99%

See 1 more Smart Citation

Built-In Self-Test of Millimeter-Wave Integrated Front-End Circuits: How Far Have We Come?

Wenger,

Meinerzhagen,

Issakov

2024

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The first example, Fig. 1(a), is a configuration often found at transmitter outputs to measure the output power of the power amplifier (PA), e.g., [25], [26], [27], [28]. A directional coupler is placed between the output of the PA and the antenna.…”

Section: B Power Levels In Typical Test Scenariosmentioning

confidence: 99%

“…Consequently, a range from −10 to 20 dBm should be considered. Coupling factors of directional couplers proposed for BIST range between 10 and 23 dB [26], [28], [34], [35].…”

Section: B Power Levels In Typical Test Scenariosmentioning

confidence: 99%

Differential-Mode Power Detection for Built-In Self-Test of SiGe Automotive Radar Transceiver Front Ends

Wenger,

Ng,

Korndörfer

et al. 2024

IEEE Trans. Microwave Theory Techn.

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Recently, the feasibility of differential-mode power detection for built-in self-test (BIST) in millimeter-wave SiGe transceiver front ends has been demonstrated. In this work, a system analysis of typical BIST scenarios is performed. Specifications for the input power levels as well as the accuracy of power detectors are derived from this analysis. A need for at least two different differential detector architectures is identified. Two detectors are derived from the differential power measurement concept, analyzed, and implemented in the 76-81-GHz automotive radar frequency band. They feature a low power consumption of 500 µW and, to the authors' best knowledge, the lowest published circuit areas of approximately 0.005 mm 2 while still being input matched to the differential 100 system impedance. Both these characteristics are essential to keep the overhead of the BIST minimal. With dynamic ranges of 30 dB and up to 46 dB for the two different architectures, the differential power detector concept can achieve sufficient performance for BIST applications. The robustness against process and temperature effects as well as noise is analyzed and reported for both detectors.

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Temperature and Process Calibration of HBT-Based Square-Law Power Detectors for Millimeter-Wave Built-In Self-Test

Wenger

Meinerzhagen

Issakov

2023

2023 IEEE/MTT-S International Microwave Symposium - IMS 2023

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Power Calibration Loop With High Accuracy of 10 dBm ±0.5 dB for a 77-GHz Radar Application

Cited by 4 publications

References 6 publications

Built-In Self-Test of Millimeter-Wave Integrated Front-End Circuits: How Far Have We Come?

Built-In Self-Test of Millimeter-Wave Integrated Front-End Circuits: How Far Have We Come?

Differential-Mode Power Detection for Built-In Self-Test of SiGe Automotive Radar Transceiver Front Ends

Temperature and Process Calibration of HBT-Based Square-Law Power Detectors for Millimeter-Wave Built-In Self-Test

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