scholarly journals Compact Dual-band BPF Composed of LC J-inverters Using Lumped Elements

2021 ◽  
Vol 14 (0) ◽  
pp. E20-014-1-E20-014-10
Author(s):  
Taro Matsumura ◽  
Satoshi Ono ◽  
Koji Wada
Keyword(s):  
Dual Band ◽  
Lumped Elements

Compact Quad-Band Bandpass Filter Using Double-Diplexing Structure

Frequenz ◽  
2017 ◽  
Vol 71 (11-12) ◽  
Author(s):  
Jin Xu ◽  
Yan Zhu ◽  
Yong-Qian Du
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Coupled Lines ◽  
Lumped Elements ◽  
Stepped Impedance Resonator ◽  
Channel Filter ◽  
Channel Filters

AbstractThis paper presents a compact quad-band bandpass filter (QB-BPF) using double-diplexing structure, which consists of two channel filters and a pair of modified manifold-coupled lines. Each channel filter is realized by the asymmetrical coupling shorted stub loaded stepped-impedance resonator (SSLSIR) dual-band bandpass filter (DB-BPF), and the modified manifold line constructed by lumped elements is proposed to connect two channel filters to constitute the QB-BPF. The fabricated QB-BPF occupies a compact circuit size of 0.178λ

A Compact Four-way Dual-band Power Divider Using Lumped Elements

2015 ◽  
Vol 25 (2) ◽  
pp. 94-96 ◽  
Author(s):  
Tianyu Zhang ◽  
Wenquan Che ◽  
Haidong Chen ◽  
Wenjie Feng
Keyword(s):  
Power Divider ◽  
Dual Band ◽  
Band Power ◽  
Lumped Elements

Single-layer fully-planar extended-composite right-/left-handed transmission lines based on substrate integrated waveguides for dual-band and quad-band applications

2013 ◽  
Vol 5 (3) ◽  
pp. 213-220 ◽  
Author(s):  
Miguel Durán-Sindreu ◽  
Jordi Bonache ◽  
Ferran Martín ◽  
Tatsuo Itoh
Keyword(s):  
Equivalent Circuit ◽  
Transmission Lines ◽  
Metal Layer ◽  
Equivalent Circuit Model ◽  
Single Layer ◽  
Dual Band ◽  
Lumped Element ◽  
Left Handed ◽  
Lumped Elements ◽  
Band Pass

The implementation and application of single-layer fully-planar extended-composite right-/left-handed transmission lines (E-CRLH TLs) in substrate-integrated waveguide (SIW) technology are presented. The multiband CRLH behavior of these artificial lines is explained by considering the lumped element equivalent circuit model. The potential of these lines for dual-band and quad-band applications is demonstrated by designing and fabricating a quad-band Y-junction power divider and two dual-band band-pass filters. The main relevant advantage of SIW-based E-CRLH TLs over other E-CRLH lines is fabrication simplicity, since only a single metal layer must be etched and lumped elements are avoided. The fabricated prototypes exhibit very reasonable performance. It is remarkable that for dual-band band-pass filters, standard Chebyshev responses can be obtained to a very good approximation.

FREQUENCY-TUNABLE DUAL-BAND PRINTED ANTENNA EQUIPPED WITH COAXIALSPLIT BALANCING UNIT

2019 ◽  
pp. 60-64
Author(s):  
S. A. Alekseytsev ◽  
A. P. Gorbachev
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Dipole Antenna ◽  
Dual Band ◽  
Radiation Characteristics ◽  
High Frequency Response ◽  
Maximum Value ◽  
Linear Behavior ◽  
Lumped Elements ◽  
Frequency Tunable

In this paper, we present initial design of dual-band dipole antenna which able to perform when shifting high frequency band by inserting of inductive element between high-, and low-frequency dipole arms. Responses of high frequency and bandwidth at –10 dB level on the inductivity are presented in the paper. The maximum value of inductivity to be inserted is about hundreds of nH, hence, it can be implemented by microstrip lines. It is also possible to use lumped elements. Approximations of such responses with polynomials power two and lower are presented in the paper. It is shown, that the bandwidth of the S11 below –10 dB high frequency response has approximately linear behavior, so that can be used when carrying out experimental verifying of the numerical simulations. When simulating radiation characteristics the Russian standard FAF‑4D substrate was used, which can operate at frequencies up to 8–10 GHz.

Dual-band N-shaped patch antenna loaded by lumped elements

2009 ◽  
Vol 51 (11) ◽  
pp. 2534-2537 ◽  
Author(s):  
Asmaa H. Moustafa ◽  
Esmat A. Abdallah ◽  
Essam A. Hashish
Keyword(s):  
Patch Antenna ◽  
Dual Band ◽  
Lumped Elements

scholarly journals A Fully-Printed CRLH Dual-Band Dipole Antenna Fed by a Compact CRLH Dual-Band Balun

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4991
Author(s):  
Muhammad Kamran Khattak ◽  
Changhyeong Lee ◽  
Heejun Park ◽  
Sungtek Kahng
Keyword(s):  
Transmission Line ◽  
Mobile Applications ◽  
Phase Shifter ◽  
Design Method ◽  
Dipole Antenna ◽  
Dual Band ◽  
Dispersion Diagram ◽  
Left Handed ◽  
Lumped Elements ◽  
Hybrid Coupler

In this paper, a new design method is proposed for a planar and compact dual-band dipole antenna. The dipole antenna has arms as a hybrid CRLH (Composite right- and left-handed) transmission-line comprising distributed and lumped elements for the dual-band function. The two arms are fed by the outputs of a compact and printed CRLH dual-band balun which consists of a CRLH hybrid coupler and an additional CRLH phase-shifter. Its operational frequencies are 2.4 and 5.2 GHz as popular mobile applications. Verifying the method, the circuit approach, EM (Electromagnetics) simulation and measurement are conducted and their results turn out to agree well with each other. Additionally, the CRLH property is shown with the dispersion diagram and the effective size-reduction is mentioned.

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