Advanced

Single-ended low noise multiband LNA with programmable integrated matching and high isolation switches

Tired, Tobias and Andreani, Pietro LU (2011) In Proc. IEEE NORCHIP p.1-4
Abstract
This paper describes a novel 90nm single-ended multiband input LNA preceded by RF input switches connected to an on-chip balun intended to drive a differential mixer. The architecture achieves a low noise figure of 1.8dB. The advantage with the proposed architecture is that it is fully single-ended with on-chip programmable narrow-band matching eliminating the need of off-chip components. Especially in multiband integrated radios a single-ended LNA is highly desirable since the pin-count for the LNAs is reduced by half compared with a differential architecture. The PCB routing of the RF input signal is simplified. Narrow-band matching is advantageous compared to common broadband matching since this adds attenuation of out of band... (More)
This paper describes a novel 90nm single-ended multiband input LNA preceded by RF input switches connected to an on-chip balun intended to drive a differential mixer. The architecture achieves a low noise figure of 1.8dB. The advantage with the proposed architecture is that it is fully single-ended with on-chip programmable narrow-band matching eliminating the need of off-chip components. Especially in multiband integrated radios a single-ended LNA is highly desirable since the pin-count for the LNAs is reduced by half compared with a differential architecture. The PCB routing of the RF input signal is simplified. Narrow-band matching is advantageous compared to common broadband matching since this adds attenuation of out of band interferers and suppresses conversion of 3rd LO harmonic. This is important for the coexistence of cellular systems with e.g. WLAN 802.11a operating in the 5GHz band (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
LNA, multiband, single-ended
in
Proc. IEEE NORCHIP
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • Scopus:84856915694
language
English
LU publication?
no
id
d75eb31a-ea85-4217-b93c-c6d87d47c55c (old id 4937910)
date added to LUP
2015-01-26 10:02:48
date last changed
2016-10-13 04:39:06
@misc{d75eb31a-ea85-4217-b93c-c6d87d47c55c,
  abstract     = {This paper describes a novel 90nm single-ended multiband input LNA preceded by RF input switches connected to an on-chip balun intended to drive a differential mixer. The architecture achieves a low noise figure of 1.8dB. The advantage with the proposed architecture is that it is fully single-ended with on-chip programmable narrow-band matching eliminating the need of off-chip components. Especially in multiband integrated radios a single-ended LNA is highly desirable since the pin-count for the LNAs is reduced by half compared with a differential architecture. The PCB routing of the RF input signal is simplified. Narrow-band matching is advantageous compared to common broadband matching since this adds attenuation of out of band interferers and suppresses conversion of 3rd LO harmonic. This is important for the coexistence of cellular systems with e.g. WLAN 802.11a operating in the 5GHz band},
  author       = {Tired, Tobias and Andreani, Pietro},
  keyword      = {LNA,multiband,single-ended},
  language     = {eng},
  pages        = {1--4},
  publisher    = {ARRAY(0x7f74710)},
  series       = {Proc. IEEE NORCHIP},
  title        = {Single-ended low noise multiband LNA with programmable integrated matching and high isolation switches},
  year         = {2011},
}