标签：PAs 阅读 power dynamic GHz 27.5 文献 5G
A 28-/37-/39-GHz Linear Doherty Power Amplifier in Silicon for 5G Applications
Affliate: Georgia Institute of Technology
Author: Hua Wang, Song Hu
Index Terms: Doherty, transformer
Publisher: MTT
Score /5: ⭐️⭐️⭐️⭐️⭐️
Type: Journal
Year: 2019
☘️BackGround
Global spectrum allocations for mm-wave 5G
| United States | 27.5-28.35GHz | 37-38.6GHz | 38.6-40GHz | 64-71GHz |
|---|---|---|---|---|
| Europe | 24.5-27.5GHz | |||
| China | 24.5-27.5GHz | 37.5-42.5GHz | ||
| Japan | 27.5-29.5GHz | |||
| South Korea | 26.5-29.5GHz | |||
| Australia | 24.25-27.5GHz | 39GHz |
5G Tech Requirements
- These 5G waveforms have large peak-to-average power ratios (PAPRs) and lead to circuit design challenges
- should be energy efficient in power back-off (PBO) to extend the battery life and ease the thermal management.
- need to be highly linear in a wide power range for both their amplitude and phase responses to ensure the quality of service
Insufficient
- inefficient active circuits or passive networks.
- improve the efficiency with increased overhead in the power management unit
- PBO efficiency enhancement techniques
| Tech | Cost |
|---|---|
| Mode-switching PAs | entail challengs to achieve dynamic powermode switching at the speeds of broadband 5G signals’ envelopes |
| Outphasing PAs | require the generation of highspeed outphasing signals（需要产生高速outphasing信号）, which demands significant baseband overhead |
| Envelope tracking (ET) PAs | require high-speed supply modulators with wide dynamic ranges（高速、高动态范围调制器）, and the stateof- |
| the-art ET designs demonstrate modulation bandwidth only up to tens of megahertz |
☘️Innovation Points
☘️Schematic and Performance
☘️Paper in 3 Sentences
☘️References
标签：PAs,阅读,power,dynamic,GHz,27.5,文献,5G 来源： https://www.cnblogs.com/wangsg/p/15895443.html
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