Melola Discovery

← Melola Discovery

Open access Jurnal SINTA 1

Concurrent Quad-band Low Noise Amplifier (QB-LNA) using Multisection Impedance Transformer

International Journal of Electrical and Computer Engineering (IJECE) · Vol. 7 No. 4 (2017)

DOI
10.11591/ijece.v7i4.pp2061-2070
ISSN
2088-8708, 2088-8708
Published
2017-08-01
Publisher
Institute of Advanced Engineering and Science
License
creativecommons.org/licenses/by-nc/4.0

Abstract

A quad-band low noise amplifier (QB-LNA) based on multisection impedance transformer designed and evaluated in this research. As a novelty, a multisection impedance transformer was used to produce QB-LNA. A multisection impedance transformer is used as input and output impedance matching because it has higher stability, large Q factor, and low noise than lumpedcomponent.The QB-LNA was designed on FR4 microstrip substrate with e r= 4.4, thickness h=0.8 mm, and tan d = 0.026. The proposed QB-LNA was designed and analyzed by Advanced Design System (ADS).The simulation has shown that QB-LNA achieves gain (S 21 ) of 22.91 dB, 16.5 dB, 11.18 dB, and 7.25 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively.The QB-LNA obtainreturn loss (S 11 ) of -21.28 dB, -31.87 dB, -28.08 dB, and -30.85 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively. It also achieves a noise figure (nf) of 2.35 dB, 2.13 dB, 2.56 dB, and 3.55 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively. This research also has shown that the figure of merit (FoM) of the proposed QB-LNA is higher than that of another multiband LNA.

Collaboration network of the authors

20 authors · 56 co-authorship links · 33 across different organisations

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • Sultan Ageng Tirtayasa University
  • Universiti Sains Malaysia
  • University of Indonesia
  • Universitas Gadjah Mada
  • Universitas 17 Agustus 1945 Jakarta
  • Mercu Buana University
  • Pakuan University
  • Other organisations
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Ahmad AshariUniversitas Gadjah Mada1
Gunawan WibisonoUniversity of Indonesia1
Tierta SyafradityaUniversity of Indonesia1
Supriyanto PraptodiyonoSultan Ageng Tirtayasa University1
Herudin HerudinSultan Ageng Tirtayasa University1
Didik AribowoSultan Ageng Tirtayasa University1
Syah AlamUniversitas 17 Agustus 1945 Jakarta1
Dian Widi AstutiMercu Buana University1
Muchamad YunusPakuan University1
Ferdinand Murni HamunduUniversitas Halu Oleo1
Ahmad FudholiNational University of Malaysia1
Majid Khan Majahar AliUniversiti Sains Malaysia1
Mukhtar MukhtarUniversiti Sains Malaysia1
Mohd Tahir IsmailUniversiti Sains Malaysia1
Naseem AkhtarUniversiti Sains Malaysia1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

This record comes from Crossref (what the publisher deposited), because the journal's own OAI-PMH endpoint could not be harvested.

Metadata source: Crossref API (cadangan, berdasarkan ISSN) https://api.crossref.org/journals/2088-8708/works, first harvested 27 Okt 2026, last seen 27 Okt 2026.
Metadata as oai_dc, converted from Crossref
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/"><dc:title>Concurrent Quad-band Low Noise Amplifier (QB-LNA) using Multisection Impedance Transformer</dc:title><dc:creator>Firmansyah, Teguh</dc:creator><dc:creator>Pramudyo, Anggoro Suryo</dc:creator><dc:creator>Wardoyo, Siswo</dc:creator><dc:creator>Wiryadinata, Romi</dc:creator><dc:creator>Alimuddin, Alimuddin</dc:creator><dc:description>&lt;jats:p&gt;&amp;lt;span&amp;gt;A quad-band low noise amplifier (QB-LNA) based on multisection impedance transformer designed and evaluated in this research. As a novelty, a multisection impedance transformer was used to produce QB-LNA. A multisection impedance transformer is used as input and output impedance matching because it has higher stability, large Q factor, and low noise than lumpedcomponent.The QB-LNA was designed on FR4 microstrip substrate with &amp;lt;/span&amp;gt;&amp;lt;span&amp;gt;e&amp;lt;/span&amp;gt;&amp;lt;span&amp;gt;r= 4.4, thickness h=0.8 mm, and tan &amp;lt;/span&amp;gt;&amp;lt;span&amp;gt;d&amp;lt;/span&amp;gt;&amp;lt;span&amp;gt;= 0.026. The proposed QB-LNA was designed and analyzed by Advanced Design System (ADS).The simulation has shown that QB-LNA achieves gain (S&amp;lt;sub&amp;gt;21&amp;lt;/sub&amp;gt;) of 22.91 dB, 16.5 dB,  11.18 dB, and 7.25 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively.The QB-LNA obtainreturn loss (S&amp;lt;sub&amp;gt;11&amp;lt;/sub&amp;gt;) of -21.28 dB, -31.87 dB,  -28.08 dB, and -30.85 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively. It also achieves a noise figure (nf) of 2.35 dB, 2.13 dB, 2.56 dB, and 3.55 dB at 0.92 GHz, 1.84 GHz, 2.61 GHz, and 3.54 GHz, respectively. This research also has shown that the figure of merit (FoM) of the proposed QB-LNA is higher than that of another multiband LNA.&amp;lt;/span&amp;gt;&lt;/jats:p&gt;</dc:description><dc:publisher>Institute of Advanced Engineering and Science</dc:publisher><dc:date>2017-08-01</dc:date><dc:type>info:eu-repo/semantics/article</dc:type><dc:format>application/pdf</dc:format><dc:identifier>https://doi.org/10.11591/ijece.v7i4.pp2061-2070</dc:identifier><dc:identifier>10.11591/ijece.v7i4.pp2061-2070</dc:identifier><dc:source>International Journal of Electrical and Computer Engineering (IJECE); Vol 7 No 4 (2017); 2061</dc:source><dc:source>2088-8708</dc:source><dc:source>2088-8708</dc:source><dc:relation>http://ijece.iaescore.com/index.php/IJECE/article/viewFile/7746/7231</dc:relation><dc:rights>http://creativecommons.org/licenses/by-nc/4.0</dc:rights></oai_dc:dc>