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US 12,531,583 B2Granted
Apparatus, system and method of transmitting a wideband radio frequency (RF) transmit (TX) signal
AssigneeIntel Corporation
InventorsElan Banin, Assaf Ben-Bassat, Ashoke Ravi, Rotem Banin, Ofir Degani
Life of this patent
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Abstract
For example, a transmitter, e.g., for a wireless communication device, may be configured to transmit a wideband Radio Frequency (RF) Transmit (Tx) signal having a wide bandwidth of at least 80 Megahertz (MHz). For example, the transmitter may be configured to generate the wideband RF Tx signal having the wide bandwidth based on a baseband signal. The transmitter may be configured to generate the wideband RF Tx signal including a suppressed third harmonic and a suppressed fifth harmonic.
Claims25
An apparatus comprising:
- a transmitter configured to transmit a wideband Radio Frequency (RF) Transmit (Tx) signal having a wide bandwidth of at least 80 Megahertz (MHz), the transmitter comprising:
- an input to input a baseband signal;
- an RF Tx signal generator to generate the wideband RF Tx signal having the wide bandwidth based on the baseband signal, the RF Tx signal generator configured to generate the wideband RF Tx signal comprising a suppressed third harmonic and a suppressed fifth harmonic, wherein the suppressed third harmonic and the suppressed fifth harmonic have a suppression of at least [50-3*log2(BW/80)] decibel (dB) relative to a carrier of the wideband RF Tx signal, wherein BW denotes the wide bandwidth in units of MHz;
- and
- an output to output the wideband RF Tx signal.
2 more elements
An apparatus comprising:
- a transmitter configured to transmit a wideband Radio Frequency (RF) Transmit (Tx) signal having a wide bandwidth of at least 80 Megahertz (MHz), the transmitter comprising:
- an input to input a baseband signal;
- an RF Tx signal generator to generate a first wideband RF signal based on the baseband signal, to generate a second wideband RF signal based on the baseband signal, and to generate a third wideband RF signal based on the baseband signal, wherein the second wideband RF signal has a predefined phase shift relative to the first wideband RF signal, wherein the RF Tx signal generator is configured to generate the wideband RF Tx signal based on a combination of the first wideband RF signal, the second wideband RF signal, and the third wideband RF signal, the RF Tx signal generator comprising:
- a first phase shifter to generate a first phase-shifted baseband signal by applying a first phase shift to the baseband signal;
- a second phase shifter to generate a second phase-shifted baseband signal by applying a second phase shift to the baseband signal;
- a first Digital Transmit (DTx) chain to generate the first wideband RF signal based on a Local Oscillator (LO) signal and the first phase-shifted baseband signal;
- a second DTx chain to generate the second wideband RF signal based on the LO signal and the second phase-shifted baseband signal;
- a third DTx chain to generate the third wideband RF signal based on the LO signal and the baseband signal;
- and
- a combiner to generate the wideband RF Tx signal based on the combination of the first wideband RF signal, the second wideband RF signal, and the third wideband RF signal;
- and
- an output to output the wideband RF Tx signal.
9 more elements
An apparatus comprising:
- transmitter means for transmitting a wideband Radio Frequency (RF) Transmit (Tx) signal having a wide bandwidth of at least 80 Megahertz (MHz), the transmitter means comprising:
- means for inputting a baseband signal;
- RF Tx signal generator means for generating the wideband RF Tx signal having the wide bandwidth based on the baseband signal, the RF Tx signal generator means comprising means for generating the wideband RF Tx signal comprising a suppressed third harmonic and a suppressed fifth harmonic, wherein the suppressed third harmonic and the suppressed fifth harmonic have a suppression of at least [50-3*log2(BW/80)] decibel (dB) relative to a carrier of the wideband RF Tx signal, wherein BW denotes the wide bandwidth in units of MHz.
Dependencies are inferred from the claim text.