Columbia University

Guoxiang Han

Peter R Kinget

Tanbir Haque

Circuits for receivers including: N first mixers that each receive an input signal, are each clocked by a different phase of a first common clock frequency, and each provide an output; and for each N first mixer: a set of M second mixers, wherein each second mixer receives as an input the output of a same one of the N first mixers unique to the set, wherein each of M second mixer is clocked by a different phase of a second common clock frequency, and wherein each second mixer has an output; a set of M resistors having a first side and a second side, wherein the first side is connected to the output of a corresponding one of the set of M second mixers; and a set of M trans-impedance amplifiers that each having an input connected to the second side of a corresponding one of the resistors.

Circuits for intermediate-frequency-filterless, double-conversion receivers

Circuits for a receiver, comprising: M first mixers that each receive an input signal, that are each clocked by a different phase of a first common clock frequency, and that each provide an output, wherein M is a count of the first mixers; and M sets of N second mixers, wherein N is a count of the second mixers in each of the M sets, wherein each second mixer in each set of N second mixers receives as an input the output of a corresponding one of the M first mixers, wherein each of the N second mixers in each of the M sets are clocked by a different phase of a second common clock frequency, and wherein each of the second mixers has an output.

Circuits comprising: a plurality of LNTA branches, each comprising: a cascode common-source (CCS) LNTA, a plurality of passive mixers (PMs), and a plurality of baseband two-stage Miller compensated TIAs (BB2S-TIAs); a plurality of mixer-first branches, each comprising: a plurality of RF switches, a plurality of baseband folded-cascode TIAs (BBFC-TIAs), and a plurality of Cherry-Hooper amplifiers, wherein an input to each of the BBFC-TIAs is provided by an output of at least one of the RF switches, and an input to each of the amplifiers is provided by an output of a corresponding one of the BBFC-TIAs; a first plurality of clock modulators that provide first non-overlapping modulated clocks that are provided to an input of the PMs; and a second plurality of clock modulators that provide a plurality of tri-level modulated mixer clocks that control the switching of the RF switches.

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New York, NY, United States of America

Guoxiang Han