| A Low Power 4-bit Interleaved Burst Sampling ADC for Sub-GHz Impulse UWB Radio Recent countries visiting this post |  |
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| A Low Power 4-bit Interleaved Burst Sampling ADC for Sub-GHz Impulse UWB Radio Recent countries visiting this post | |
| 3 | United States |
| 2 | |
| 1 | Russian Federation |