Abstract

This letter describes the design and the measurements of a 15 GHz monopole antenna implemented in silicon photonics for inter-chip communication. The antenna is designed in HFSS with its radiation pattern simulated. To confirm its operation and experimentally demonstrate inter-chip communication, the antenna is fabricated in a commercial Silicon Photonics fabrication process. Measurements include s-parameter using a vector network analyzer, and inter-chip data transmission between two on-chip antennas. The inter-chip data transmission is demonstrated using an off-chip photodetector directly as a transmitter as a proof-of-concept. Results indicate the feasibility of a monolithically integrated photodiode-antenna system as a transmitter.

Highlights

  • R ECENTLY, there has been an increasing interest in the implementation of front-end electronics with optical passives in silicon-photonics (SiP) [1]–[5]

  • An optical passive delay line replaces the clock generation blocks of a conventional electronic receiver [4], [5]. This trend is possible partly due to the SiP platform proving to be a cost-effective option to host bulky electronic passives compared to high-end complementary metal-oxidesemiconductor (CMOS) platforms

  • Researchers are developing critical components needed to support these applications [8]–[12] including mode-locked laser diode for RF frequency operation [8], high output power photodetectors [8]–[10], photomixers [8], [11], photonic transmitters [12], photonic-antenna emitters [13], [14], and integrated photoreceivers [15]. Following these new opportunities enabled by the emergence and advancement in photonic integration, we developed a planar monopole antenna for inter-chip RF communication and RoF applications leveraging a commercial SiP technology platform

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Summary

INTRODUCTION

R ECENTLY, there has been an increasing interest in the implementation of front-end electronics with optical passives in silicon-photonics (SiP) [1]–[5]. Researchers are developing critical components needed to support these applications [8]–[12] including mode-locked laser diode for RF frequency operation [8], high output power photodetectors [8]–[10], photomixers [8], [11], photonic transmitters [12], photonic-antenna emitters [13], [14], and integrated photoreceivers [15] Following these new opportunities enabled by the emergence and advancement in photonic integration, we developed a planar monopole antenna for inter-chip RF communication and RoF applications leveraging a commercial SiP technology platform.

ANTENNA DESIGN
EXPERIMENTAL VALIDATION
DISCUSSION
SUMMARY
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