PMID- 32961862
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240329
IS  - 2072-666X (Print)
IS  - 2072-666X (Electronic)
IS  - 2072-666X (Linking)
VI  - 11
IP  - 9
DP  - 2020 Sep 18
TI  - Inkjet-Printed Graphene-Based 1 x 2 Phased Array Antenna.
LID - 10.3390/mi11090863 [doi]
LID - 863
AB  - Low-cost and conformal phased array antennas (PAAs) on flexible substrates are of 
      particular interest in many applications. The major deterrents to developing 
      flexible PAA systems are the difficulty in integrating antenna and electronics 
      circuits on the flexible surface, as well as the bendability and oxidation rate 
      of radiating elements and electronics circuits. In this research, graphene ink 
      was developed from graphene flakes and used to inkjet print the radiating element 
      and the active channel of field effect transistors (FETs). Bending and oxidation 
      tests were carried out to validate the application of printed flexible graphene 
      thin films in flexible electronics. An inkjet-printed graphene-based 1 x 2 
      element phased array antenna was designed and fabricated. Graphene-based field 
      effect transistors were used as switches in the true-time delay line of the 
      phased array antenna. The graphene phased array antenna was 100% inkjet printed 
      on top of a 5 mil flexible Kapton((R)) substrate, at room temperature. Four 
      possible azimuth steering angles were designed for -26.7 degrees , 0 degrees , 13 degrees , and 42.4 degrees . 
      Measured far-field patterns show good agreement with simulation results.
FAU - Monne, Mahmuda Akter
AU  - Monne MA
AUID- ORCID: 0000-0003-4038-1947
AD  - Materials Science Engineering and Commercialization, Texas State University, San 
      Marcos, TX 78666-4684, USA.
FAU - Grubb, Peter Mack
AU  - Grubb PM
AUID- ORCID: 0000-0002-1405-7564
AD  - Department of Electrical and Computer Engineering, University of Texas at Austin, 
      Austin, TX 78712-1589, USA.
FAU - Stern, Harold
AU  - Stern H
AD  - Ingram School of Engineering, Texas State University, San Marcos, TX 78666-4684, 
      USA.
FAU - Subbaraman, Harish
AU  - Subbaraman H
AD  - Department of Electrical and Computer Engineering, Boise State University, Boise, 
      ID 83725-0001, USA.
FAU - Chen, Ray T
AU  - Chen RT
AD  - Department of Electrical and Computer Engineering, University of Texas at Austin, 
      Austin, TX 78712-1589, USA.
FAU - Chen, Maggie Yihong
AU  - Chen MY
AUID- ORCID: 0000-0003-2226-7112
AD  - Materials Science Engineering and Commercialization, Texas State University, San 
      Marcos, TX 78666-4684, USA.
AD  - Ingram School of Engineering, Texas State University, San Marcos, TX 78666-4684, 
      USA.
LA  - eng
GR  - NNX14CS53P/NASA/NASA/United States
PT  - Journal Article
DEP - 20200918
PL  - Switzerland
TA  - Micromachines (Basel)
JT  - Micromachines
JID - 101640903
PMC - PMC7570259
OTO - NOTNLM
OT  - field effect transistor
OT  - graphene
OT  - graphene ink
OT  - inkjet printing
OT  - phased array antenna
OT  - true-time delay
COIS- The authors declare no conflict of interest.
EDAT- 2020/09/24 06:00
MHDA- 2020/09/24 06:01
PMCR- 2020/09/18
CRDT- 2020/09/23 01:02
PHST- 2020/08/18 00:00 [received]
PHST- 2020/09/15 00:00 [revised]
PHST- 2020/09/17 00:00 [accepted]
PHST- 2020/09/23 01:02 [entrez]
PHST- 2020/09/24 06:00 [pubmed]
PHST- 2020/09/24 06:01 [medline]
PHST- 2020/09/18 00:00 [pmc-release]
AID - mi11090863 [pii]
AID - micromachines-11-00863 [pii]
AID - 10.3390/mi11090863 [doi]
PST - epublish
SO  - Micromachines (Basel). 2020 Sep 18;11(9):863. doi: 10.3390/mi11090863.