Wide-bandwidth, vector-corrected measurement with high spurious-free dynamic range

Blockley, P.S.; Gunyan, D.; Scott, Jonathan B.

doi:10.1109/arftgs.2005.1500589

Cited by 4 publications

(4 citation statements)

References 2 publications

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“…As a consequence, in this paper, we propose to use a new HPR generator, which consists of a multisine covering the entire bandwidth (20 MHz-4 GHz) with a 20-MHz frequency spacing. The proposed technique is similar to the one reported in [21] and [22]. The technique presented here is a sampler-based technique, while the technique reported in [21] and [22] is a mixer-based technique.…”

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confidence: 84%

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Time-Domain Calibrated Measurements of Wideband Multisines Using a Large-Signal Network Analyzer

Yaagoubi

Neveux

Barataud

et al. 2008

IEEE Trans. Microwave Theory Techn.

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Abstract-This paper presents a calibrated measurement technique that enables phase and magnitude measurements of wideband multisines. This study is based on the use of a large-signal network analyzer (LSNA) performing harmonic sub-sampling and a fine frequency grid (20 MHz) comb generator calibrated using a high-frequency 50-GHz equivalent-time sampling scope. This comb generator is used as a harmonic phase reference generator for the calibration of the LSNA.The research reported here is applied to -band multisine measurements, but it can be extended to higher microwave frequencies. The motivation of this study is to measure the multipactor phenomena effect in output RF multiplexers of satellite payloads.Index Terms-Harmonic mixing, harmonic phase reference (HPR), large-signal network analyzer (LSNA), multisines, time-domain measurements.

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confidence: 84%

“…The proposed technique is similar to the one reported in [21] and [22]. The technique presented here is a sampler-based technique, while the technique reported in [21] and [22] is a mixer-based technique. In mixer-based techniques, the different tones of the signals are sequentially measured.…”

mentioning

confidence: 84%

Time-Domain Calibrated Measurements of Wideband Multisines Using a Large-Signal Network Analyzer

Yaagoubi

Neveux

Barataud

et al. 2008

IEEE Trans. Microwave Theory Techn.

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“…References [54,55] addition to the usual S-parameters calibration, a harmonic phase reference is required. This may be accomplished using a characterized pulse reference [56,57]. In order to improve calibration accuracy, over-determined statistical techniques are employed [58,59,60].…”

Section: End Of the Day-1980s And 1990smentioning

confidence: 99%

Network Analyzer Calibrations - Yesterday, Today and Tomorrow

Wong

2008

2008 71st ARFTG Microwave Measurement Conference

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From the very beginning, network analyzers were calibrated manually. Grease pencils were used to mark the reference level on a CRT display or meter display. Such calibration methods were able to remove some of the measurement scalar errors.Full real time vector error correction wasn't possible until the introduction of the hp8540A automatic vector network analyzer. It also allowed imperfect standards, i.e. an open, to be defined by a device model. The short-open-load-through calibration method was fully enabled. Since then, a surge in research on vna calibration methods brought us the through-reflect-line family of calibrations. Electronic calibration was invented to simplify calibration. Multi-port, differential and non-linear calibration methods and standards are the current and future challenges.

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“…Thus, this method is suitable for narrowband modulations, but is not suitable for wide-bandwidth applications. For the example shown in [13], a multitone signal was generated with 800-MHz bandwidth, carrier frequency of 3.66 GHz, and fundamental of 1.8 MHz. The resulting variance of the time-zero cancellation phase would be up to 48 dB greater than the measured phase for some frequency components in the signal.…”

Section: Time-zero Cancellationmentioning

confidence: 99%

Noise considerations when determining phase of large-signal microwave measurements

Blockley

Scott

Gunyan

et al. 2006

IEEE Trans. Microwave Theory Techn.

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Advances in microwave instrumentation now make it feasible to accurately measure not only the magnitude spectrum, but also the phase spectrum of wide-bandwidth signals. In a practical measurement, the spectrum is measured over a finite window of time. The phase spectrum is related to the position of this window, causing the spectrum to differ between measurements of an identical waveform. It is difficult to compare multiple measurements with different window positions or to incorporate them into a model. Several methods have been proposed for determining the phase spectrum such that multiple measurements can be effectively compared and utilized in models. The methods are reviewed in terms of the information required to determine the phase and compared in terms of their robustness in the presence of measurement noise.

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Wide-bandwidth, vector-corrected measurement with high spurious-free dynamic range

Cited by 4 publications

References 2 publications

Time-Domain Calibrated Measurements of Wideband Multisines Using a Large-Signal Network Analyzer

Time-Domain Calibrated Measurements of Wideband Multisines Using a Large-Signal Network Analyzer

Network Analyzer Calibrations - Yesterday, Today and Tomorrow

Noise considerations when determining phase of large-signal microwave measurements

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