Ultra linear low-loss varactor diode configurations for adaptive RF systems

Cong Huang; Koen Buisman; Mauro Marchetti; Lis K. Nanver; Francesco Sarubbi; Miloš Popadić; Tom L.M. Scholtes; Hugo Schellevis; Lawrence E. Larson; Leo C.N. De Vreede

doi:10.1109/TMTT.2008.2008978

Ultra linear low-loss varactor diode configurations for adaptive RF systems

Cong Huang^*
, Koen Buisman
, Mauro Marchetti
, Lis K. Nanver
, Francesco Sarubbi
, Miloš Popadić
, Tom L.M. Scholtes
, Hugo Schellevis
, Lawrence E. Larson
, Leo C.N. De Vreede

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

27 Citations (Scopus)

1 Downloads (Pure)

Abstract

Two linear low-loss varactor configurations for tunable RF applications are compared. The wide tone-spacing varactor stack provides the best linearity for signals with relative large tone spacing like receiver jammer situations. The narrow tone-spacing varactor stack offers the highest linearity for in-band-modulated signals, and is better suited to adaptive transmitters. Both structures make use of a varactor with an exponential C(V_R) relation, and so the different requirements of transmit and receive chains can be addressed in one technology. Both configurations have been realized in a silicon-on-glass technology. The measured Q at 1.95 GHz is from ∼40 to 200 over a capacitance tuning range of 3.5 with the maximum control voltage of 12 V. The measured OIP3 of both structures are roughly 60 dBm.

Original language	English
Article number	4711066
Pages (from-to)	205-215
Number of pages	11
Journal	IEEE transactions on microwave theory and techniques
Volume	57
Issue number	1
Early online date	12 Dec 2008
DOIs	https://doi.org/10.1109/TMTT.2008.2008978
Publication status	Published - 8 Jan 2009
Externally published	Yes

Keywords

Adaptive systems
Band switching
Impedance matching
Low distortion
Tunable filters
Tuners
Varactors

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10.1109/TMTT.2008.2008978

Cite this

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title = "Ultra linear low-loss varactor diode configurations for adaptive RF systems",

abstract = "Two linear low-loss varactor configurations for tunable RF applications are compared. The wide tone-spacing varactor stack provides the best linearity for signals with relative large tone spacing like receiver jammer situations. The narrow tone-spacing varactor stack offers the highest linearity for in-band-modulated signals, and is better suited to adaptive transmitters. Both structures make use of a varactor with an exponential C(VR) relation, and so the different requirements of transmit and receive chains can be addressed in one technology. Both configurations have been realized in a silicon-on-glass technology. The measured Q at 1.95 GHz is from ∼40 to 200 over a capacitance tuning range of 3.5 with the maximum control voltage of 12 V. The measured OIP3 of both structures are roughly 60 dBm.",

keywords = "Adaptive systems, Band switching, Impedance matching, Low distortion, Tunable filters, Tuners, Varactors",

author = "Cong Huang and Koen Buisman and Mauro Marchetti and Nanver, \{Lis K.\} and Francesco Sarubbi and Milo{\v s} Popadi{\'c} and Scholtes, \{Tom L.M.\} and Hugo Schellevis and Larson, \{Lawrence E.\} and \{De Vreede\}, \{Leo C.N.\}",

year = "2009",

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doi = "10.1109/TMTT.2008.2008978",

language = "English",

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AU - Huang, Cong

AU - Buisman, Koen

AU - Marchetti, Mauro

AU - Nanver, Lis K.

AU - Sarubbi, Francesco

AU - Popadić, Miloš

AU - Scholtes, Tom L.M.

AU - Schellevis, Hugo

AU - Larson, Lawrence E.

AU - De Vreede, Leo C.N.

PY - 2009/1/8

Y1 - 2009/1/8

N2 - Two linear low-loss varactor configurations for tunable RF applications are compared. The wide tone-spacing varactor stack provides the best linearity for signals with relative large tone spacing like receiver jammer situations. The narrow tone-spacing varactor stack offers the highest linearity for in-band-modulated signals, and is better suited to adaptive transmitters. Both structures make use of a varactor with an exponential C(VR) relation, and so the different requirements of transmit and receive chains can be addressed in one technology. Both configurations have been realized in a silicon-on-glass technology. The measured Q at 1.95 GHz is from ∼40 to 200 over a capacitance tuning range of 3.5 with the maximum control voltage of 12 V. The measured OIP3 of both structures are roughly 60 dBm.

AB - Two linear low-loss varactor configurations for tunable RF applications are compared. The wide tone-spacing varactor stack provides the best linearity for signals with relative large tone spacing like receiver jammer situations. The narrow tone-spacing varactor stack offers the highest linearity for in-band-modulated signals, and is better suited to adaptive transmitters. Both structures make use of a varactor with an exponential C(VR) relation, and so the different requirements of transmit and receive chains can be addressed in one technology. Both configurations have been realized in a silicon-on-glass technology. The measured Q at 1.95 GHz is from ∼40 to 200 over a capacitance tuning range of 3.5 with the maximum control voltage of 12 V. The measured OIP3 of both structures are roughly 60 dBm.

KW - Adaptive systems

KW - Band switching

KW - Impedance matching

KW - Low distortion

KW - Tunable filters

KW - Tuners

KW - Varactors

U2 - 10.1109/TMTT.2008.2008978

DO - 10.1109/TMTT.2008.2008978

M3 - Article

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SP - 205

EP - 215

JO - IEEE transactions on microwave theory and techniques

JF - IEEE transactions on microwave theory and techniques

IS - 1

M1 - 4711066

ER -

Ultra linear low-loss varactor diode configurations for adaptive RF systems

Abstract

Keywords

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