Experimental Investigations of Intermodulation Distortion in Tunable Ferroelectric Phase Shifters

Dongsu KIM; James Stevenson KENNEY

doi:10.1093/ietele/e88-c.12.2310

Experimental Investigations of Intermodulation Distortion in Tunable Ferroelectric Phase Shifters

Dongsu KIM, James Stevenson KENNEY

Full Text Views

0

Cite this

Summary :

This paper investigates intermodultation distortion in ferroelectric phase shifters depending on bias voltage. Two analog phase shifters based on barium-strontium-titantate (BST) coated sapphire substrates have been fabricated with interdigital capacitors (IDCs) which have 2 and 4 µm spacing between adjacent fingers. In case of the phase shifter with 4 µm-spaced IDCs, a phase shift of more than 121was obtained with a maximum insertion loss of 1.8 dB from 2.4 to 2.5 GHz over a bias voltage range of 0-140 V. The phase shifter with 2 µm-spaced IDCs exhibited a phase shift of more than 135with a maximum insertion loss of 2.37 dB in the same frequency range. In this case, a bias voltage of 80 V was used. Using 2 and 4 µm-spaced phase shifters, a third-order intermodulation (IM3) measurement was carried out with a two-tone cancellation setup to investigate nonlinearity, resulting in an input third-order intercept point (IIP3) of about 30.5 dBm and 38.5 dBm, respectively.

Publication: IEICE TRANSACTIONS on Electronics Vol.E88-C No.12 pp.2310-2315

Publication Date: 2005/12/01

Publicized

Online ISSN

DOI: 10.1093/ietele/e88-c.12.2310

Type of Manuscript: Special Section PAPER (Special Section on Wireless Technologies and Computational Electromagnetics)

Category: Devices

Cite this

Copy

Dongsu KIM, James Stevenson KENNEY, "Experimental Investigations of Intermodulation Distortion in Tunable Ferroelectric Phase Shifters" in IEICE TRANSACTIONS on Electronics, vol. E88-C, no. 12, pp. 2310-2315, December 2005, doi: 10.1093/ietele/e88-c.12.2310.
Abstract: This paper investigates intermodultation distortion in ferroelectric phase shifters depending on bias voltage. Two analog phase shifters based on barium-strontium-titantate (BST) coated sapphire substrates have been fabricated with interdigital capacitors (IDCs) which have 2 and 4 µm spacing between adjacent fingers. In case of the phase shifter with 4 µm-spaced IDCs, a phase shift of more than 121was obtained with a maximum insertion loss of 1.8 dB from 2.4 to 2.5 GHz over a bias voltage range of 0-140 V. The phase shifter with 2 µm-spaced IDCs exhibited a phase shift of more than 135with a maximum insertion loss of 2.37 dB in the same frequency range. In this case, a bias voltage of 80 V was used. Using 2 and 4 µm-spaced phase shifters, a third-order intermodulation (IM3) measurement was carried out with a two-tone cancellation setup to investigate nonlinearity, resulting in an input third-order intercept point (IIP3) of about 30.5 dBm and 38.5 dBm, respectively.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e88-c.12.2310/_p

Copy

@ARTICLE{e88-c_12_2310,
author={Dongsu KIM, James Stevenson KENNEY, },
journal={IEICE TRANSACTIONS on Electronics},
title={Experimental Investigations of Intermodulation Distortion in Tunable Ferroelectric Phase Shifters},
year={2005},
volume={E88-C},
number={12},
pages={2310-2315},
abstract={This paper investigates intermodultation distortion in ferroelectric phase shifters depending on bias voltage. Two analog phase shifters based on barium-strontium-titantate (BST) coated sapphire substrates have been fabricated with interdigital capacitors (IDCs) which have 2 and 4 µm spacing between adjacent fingers. In case of the phase shifter with 4 µm-spaced IDCs, a phase shift of more than 121was obtained with a maximum insertion loss of 1.8 dB from 2.4 to 2.5 GHz over a bias voltage range of 0-140 V. The phase shifter with 2 µm-spaced IDCs exhibited a phase shift of more than 135with a maximum insertion loss of 2.37 dB in the same frequency range. In this case, a bias voltage of 80 V was used. Using 2 and 4 µm-spaced phase shifters, a third-order intermodulation (IM3) measurement was carried out with a two-tone cancellation setup to investigate nonlinearity, resulting in an input third-order intercept point (IIP3) of about 30.5 dBm and 38.5 dBm, respectively.},
keywords={},
doi={10.1093/ietele/e88-c.12.2310},
ISSN={},
month={December},}

Copy

TY - JOUR
TI - Experimental Investigations of Intermodulation Distortion in Tunable Ferroelectric Phase Shifters
T2 - IEICE TRANSACTIONS on Electronics
SP - 2310
EP - 2315
AU - Dongsu KIM
AU - James Stevenson KENNEY
PY - 2005
DO - 10.1093/ietele/e88-c.12.2310
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E88-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 2005
AB - This paper investigates intermodultation distortion in ferroelectric phase shifters depending on bias voltage. Two analog phase shifters based on barium-strontium-titantate (BST) coated sapphire substrates have been fabricated with interdigital capacitors (IDCs) which have 2 and 4 µm spacing between adjacent fingers. In case of the phase shifter with 4 µm-spaced IDCs, a phase shift of more than 121was obtained with a maximum insertion loss of 1.8 dB from 2.4 to 2.5 GHz over a bias voltage range of 0-140 V. The phase shifter with 2 µm-spaced IDCs exhibited a phase shift of more than 135with a maximum insertion loss of 2.37 dB in the same frequency range. In this case, a bias voltage of 80 V was used. Using 2 and 4 µm-spaced phase shifters, a third-order intermodulation (IM3) measurement was carried out with a two-tone cancellation setup to investigate nonlinearity, resulting in an input third-order intercept point (IIP3) of about 30.5 dBm and 38.5 dBm, respectively.
ER -