IP Library › Granted Patent US 12,418,450
Granted Patent B2
US 12,418,450 · App. 18/412,451 · Granted Sep 16, 2025

System and method for real-time ultrabroadband wireless communications

Inventors: Hussam Abdellatif (Boston, MA); Paboda Viduneth Ariyarathna Beruwawela Pathiranage (San Diego, CA); Habarakada Liyanachchi Prabath Arjuna Madanayake (West Miami, FL); Josep Miquel Jornet (Needham, MA)
Assignees: Northeastern University; The Florida International University Board of Trustees
H04L27/36
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Quick Facts
Patent No.
US 12,418,450
App. No.
18/412,451
Granted
Sep 16, 2025
Kind
B2
Abstract

A system and corresponding method may be employed for real-time ultrabroadband wireless communications. The system comprised a plurality of in-phase and quadrature (IQ) mixers that produce, in real-time on a per-channel basis, sub-channel signals from respective analog baseband IQ signals representing respective portions of user data. The system further comprises a power combiner. The power combiner produces a multi-channel output signal by frequency multiplexing, in real-time, the sub-channel signals produced. The multi-channel output signal represents the user data in its entirety and may be a real-time, multi-GHz wireless signal.

Claims (41)

1. A system for real-time wireless communications, the system comprising:

a plurality of in-phase and quadrature (IQ) mixers configured to produce in real-time on a per-channel basis, sub-channel signals from respective analog baseband IQ signals representing respective portions of user data; and

a power combiner configured to produce a multi-channel output signal by frequency multiplexing, in real-time, the sub-channel signals produced, the multi-channel output signal representing the user data in its entirety.

2. The system of claim 1 , further comprising an output amplifier coupled to the power combiner, the output amplifier configured to amplify, in real-time, the multi-channel output signal produced by the power combiner and wherein the output amplifier is further configured to cover a frequency range of the sub-channel signals produced.

3. The system of claim 1 , further comprising sub-channel amplifiers configured to amplify in parallel, in real-time on the per-channel basis, the sub-channel signals produced.

4. The system of claim 1 , further comprising filters coupled to respective IQ mixers of the plurality of IQ mixers, the filters configured to filter in parallel, in real-time on the per-channel basis, the sub-channel signals produced.

5. The system of claim 1 , wherein the system further comprises:

a plurality of digital-to-analog converter (DAC) pairs; and

a plurality of pre-mixer filter pairs, wherein a sub-channel of a plurality of channels of the system includes a respective DAC pair of the plurality of DAC pairs, a respective pre-mixer filter pair of the plurality of pre-mixer filter pairs, a respective IQ mixer of the plurality of IQ mixers, and a respective post-mixer filter interposed between the respective IQ mixer and the power combiner.

6. The system of claim 5 , wherein the respective DAC pair is configured to produce a respective I stream and a respective Q stream from a respective digital packetized portion of the user data, wherein the respective pre-mixer filter pair is configured to filter the respective I stream and respective Q stream produced, wherein the respective IQ mixer is configured to produce a respective sub-channel signal of the sub-channel signals based on the respective I stream and respective Q stream produced and filtered, and wherein the multi-channel output signal produced includes the respective sub-channel signal produced.

7. The system of claim 1 , wherein the system is coupled to a radio frequency (RF) front-end and wherein the system is configured to output, via the RF front-end, the multi-channel output signal produced.

8. The system of claim 7 , wherein the plurality of IQ mixers is a plurality of transmit stage IQ mixers and wherein the system further comprises:

a power splitter configured to split an input signal, received via the RF front-end, into a plurality of copies of the input signal, wherein a total number of the plurality of copies is based on a total number of channels of the system;

a plurality of receive stage IQ mixers coupled to the power splitter, receive stage IQ mixers of the plurality of receive stage IQ mixers configured to produce, in real-time, a respective I stream signal and respective Q stream signal, in parallel on a per-channel basis, based on a respective copy of the input signal of the plurality of copies of the input signal;

a plurality of receive stage filters coupled to respective receive stage IQ mixers of the plurality of receive stage IQ mixers, wherein receive stage filters of the plurality of receive stage filters are configured to filter in parallel, in real-time on the per-channel basis, the respective I stream and respective Q stream signals produced; and

a plurality of receive stage amplifiers coupled to respective receive stage filters of the plurality of receive stage filters, wherein receive stage filters of the plurality of receive stage filters are configured to amplify in parallel, in real-time on the per-channel basis, the respective I stream and respective Q stream signals produced and filtered.

9. The system of claim 8 , further comprising a plurality of analog-to-digital converters (ADCs), wherein ADCs of the plurality of ADCs are configured to produce in parallel, in real-time, a plurality of digital data streams by converting in parallel, in real-time on the per channel basis, the respective I stream and respective Q stream signals produced, filtered, and amplified, from an analog domain to a digital domain.

10. The system of claim 1 , wherein the system is configured to operate in a terahertz (THz) frequency band and utilize a target bandwidth in real-time.

11. The system of claim 1 , wherein the multi-channel output signal produced is a real-time, ultra-broadband THz wireless signal and wherein the real-time, ultra-broadband THz wireless signal is a real-time, multi-GHz wireless signal.

12. The system of claim 1 , wherein the system is implemented via an integrated circuit (IC), the IC including analog, digital, mixed signal and photonic integrated circuits (ICs).

13. The system of claim 1 , further comprising a plurality of data converters and wherein the user data is processed through a digital system on a RF system-on-chip (RFSoC) in a polyphase architecture to match a sampling rate of the data converters of the plurality of data converters.

14. A method for real-time wireless communications, the method comprising:

producing in parallel, in real-time on a per channel basis, sub-channel signals from respective analog baseband in-phase and quadrature (IQ) signals representing respective portions of user data; and

producing a multi-channel output signal by frequency multiplexing, in real-time, the sub-channel signals produced, the multi-channel output signal representing the user data in its entirety.

15. The method of claim 14 , further comprising amplifying the multi-channel output signal and wherein the amplifying includes covering a frequency range of all sub-channels of the sub-channels produced.

16. The method of claim 14 , further comprising amplifying in parallel, in real-time on the per-channel basis, the sub-channel signals produced.

17. The method of claim 14 , further comprising filtering in parallel, in real-time on the per-channel basis, the sub-channel signals produced.

18. The method of claim 14 , further comprising:

producing a respective I stream and a respective Q stream from a respective digital packetized portion of the user data;

mixing the respective I stream and respective Q stream produced, wherein the mixing includes producing a respective sub-channel signal of the sub-channel signals based on the respective I stream and respective Q stream produced and filtered, and wherein the multi-channel output signal produced includes the respective sub-channel signal produced.

19. The method of claim 14 , further comprising outputting, via a radio frequency (RF) front-end, the multi-channel output signal produced.

20. The method of claim 19 , further comprising:

splitting an input signal, received via the RF front-end, into a plurality of copies of the input signal, wherein a total number of the plurality of copies is based on a total number of channels of a system;

producing, in real-time, a respective I stream signal and respective Q stream signal, in parallel on a per-channel basis, based on a respective copy of the input signal of the plurality of copies of the input signal;

filtering in parallel, in real-time on the per-channel basis, the respective I stream and respective Q stream signals produced; and

amplifying in parallel, in real-time on the per-channel basis, the respective I stream and respective Q stream signals produced and filtered.

21. The method of claim 20 , further comprising:

producing in parallel, in real-time, a plurality of digital data streams by converting in parallel, in real-time on the per channel basis, the respective I stream and respective Q stream signals produced, filtered, and amplified, from an analog domain to a digital domain.

22. The method of claim 21 , further comprising operating in a terahertz (THz) frequency band and utilizing a target bandwidth in real-time.

23. The method of claim 14 , wherein the multi-channel output signal produced is a real-time, ultra-broadband THz wireless signal and wherein the real-time, ultra-broadband THz wireless signal is a real-time, multi-GHz wireless signal.

24. The method of claim 14 , further comprising performing the method via an integrated circuit (IC), the IC including analog, digital, mixed signal and photonic integrated circuits (ICs).

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2025
From: ARJUNA MADANAYAKE, HABARAKADA LIYANACHCHI PRABATH
To: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
Reel/Frame 071714/0523 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ORDER OF INVENTORS BY REMOVING INVENTOR HABARAKADA LIYANACHCHI PRABATH ARJUNA MADANAYAKE PREVIOUSLY RECORDED ON REEL 66588 FRAME 404. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 15, 2025
From: ABDELLATIF, HUSSAM; BERUWAWELA PATHIRANAGE, PABODA VIDUNETH ARIYARATHNA; JORNET, JOSEP MIQUEL
To: NORTHEASTERN UNIVERSITY
Reel/Frame 071957/0032 →
CONFIRMATORY LICENSE Recorded Apr 30, 2024
From: NORTHEASTERN UNIVERSITY
To: GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THESECRETARY OF THE AIR FORCE
Reel/Frame 067266/0132 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 28, 2024
From: ABDELLATIF, HUSSAM; BERUWAWELA PATHIRANAGE, PABODA VIDUNETH ARIYARATHNA; ARJUNA MADANAYAKE, HABARAKADA LIYANACHCHI PRABATH; JORNET, JOSEP MIQUEL
To: NORTHEASTERN UNIVERSITY
Reel/Frame 066588/0404 →
Continuity (4)
Continuation In Part 18356213 · Jul 20, 2023
Provisional Application 63508299 · Jun 15, 2023
Provisional Application 63368941 · Jul 20, 2022
Related Publication 20240163155A1 · May 16, 2024
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