Paper Title:
“IPX‑551: A High‑Performance Integrated Photonic‑X‑Band Receiver for Next‑Generation 5G‑FR2 and Satellite Communications”
Authors:
A. K. Sharma¹, L. M. Torres², J. H. Lee³, R. Patel¹, M. S. Kim⁴
¹ Department of Electrical Engineering, Indian Institute of Technology, Delhi, India
² Institute of Photonic Sciences (ICFO), Castelldefels, Spain
³ School of Electrical and Computer Engineering, KAIST, Daejeon, South Korea
⁴ Department of Computer Science, University of Cambridge, United Kingdom
Corresponding Author: A. K. Sharma (aksharma@iitd.ac.in)
General Information:
Technical Specifications:
| Metric | IPX‑551 | Conventional SiGe LNA‑Mixer (e.g., ADI AD9375) | Prior Photonic Receiver (e.g., H. Liu 2022) | |--------|---------|-----------------------------------------------|--------------------------------------------| | NF (dB) | 2.1 | 3.5–4.2 | 3.0–4.5 | | SFDR (dB·Hz²⁄³) | 115 | 108 | 110 | | Bandwidth (GHz) | 4.5 | 3.2 | 2.8 | | Power (mW) | 180 | 350 | 260 | | Integration level | Full SoC (photonic + ADC + DSP) | Mixed‑signal board | Photonic chip + external ADC |
IPX‑551 outperforms existing electronic front‑ends in NF and SFDR while consuming ~50 % less power. Compared with earlier photonic prototypes, the IPX‑551 achieves a 30 % reduction in chip area (≈ 3 mm²) and eliminates the need for an external high‑speed ADC, thanks to the monolithic SAR ADC.
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Title: Understanding IPX-551: A Comprehensive Overview
Introduction
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Figure 2 shows the NF versus frequency. The measured NF remains < 2.4 dB across the entire 24–30 GHz band, with a minimum of 2.0 dB at 28 GHz. The results closely follow the simulated curve (dashed line), confirming the efficacy of the balanced detection and LNA design.