Over-the-Air Testing of Cellular Large-Form-Factor Internet-of-Things Devices in Reverberation Chambers

Remley, Kate A.; Bax, Clive; Mendivil, Edwin; Foegelle, Michael D.; Kvarnstrand, John; Skousen, Derek; Sánchez‐Hernández, D.; Garcı́a-Fernández, Miguel Ángel; Chang, Lorien; Yen, Elvis; Gutierrez, Johnny; Harbour, Justin

doi:10.1109/arftg47271.2020.9241382

Cited by 1 publication

(3 citation statements)

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“…RCs have been used to test devices for both TRP and TIS allowing, it is worth emphasizing, the calculation of uncertainties [5]. Gref can be calculated in linear units as [3,11] Fig. 1.…”

Section: A Background: Normal Tis In Reverberation Chambersmentioning

confidence: 99%

“…In order to calculate TIS using reverberation chambers (RCs), the device sensitivity is sampled over many steppedmode-stirring (or tuning) states [5][6][7][8][9][10][11][12] and the formula to calculate TIS can be derived the same way as for anechoic chambers [7]. Application of RCs to evaluate TIS was introduced almost 30 years ago and today the use of RCs for both TRP and TIS measurements is widely adopted [13].…”

Section: Introductionmentioning

confidence: 99%

“…Application of RCs to evaluate TIS was introduced almost 30 years ago and today the use of RCs for both TRP and TIS measurements is widely adopted [13]. The Normal TIS approach using reverberation chambers is therefore well established and has been used for many years [3]; agreement between RC and anechoic chamber (AC) methods for over-the-air testing of single-input, single-output (SISO) IoT devices has also already been established [11].…”

Section: Introductionmentioning

confidence: 99%

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A Fast Procedure for Total Isotropic Sensitivity Measurements of Cellular IoT Devices in Reverberation Chambers

Nogueira

Remley

Catteau³

et al. 2022

IEEE Trans. Instrum. Meas.

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We present a method that allows a fast evaluation of total isotropic sensitivity with the use of continuous-mode stirring in a reverberation chamber. A limited number of standard stepped-mode measurements are taken to calibrate the continuous-mode measurements by computing the offset between the measured sensitivity level of the device and the device-reported reference signal received power. A comparison of the results from the method proposed here and the standard stepped-mode approach illustrates that the measurement results of the fast approach can be within 0.2 dB to 0.5 dB of the standard method and allows for a test time reduction of up to 90 %.

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“…RCs have been used to test devices for both TRP and TIS allowing, it is worth emphasizing, the calculation of uncertainties [5]. Gref can be calculated in linear units as [3,11] Fig. 1.…”

Section: A Background: Normal Tis In Reverberation Chambersmentioning

confidence: 99%