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A Miniaturized Branch Line Coupler with Harmonic Suppression
-
Mohsen Hayati
and
Mahin Ehteshami
Published/Copyright:
May 28, 2014
Abstract
In this paper, a miniaturized branch-line coupler with harmonic suppression is presented. Approximately 80% size reduction in comparison with the conventional branch-line coupler is achieved using the step impedance bent transmission line, loaded by in-line beeline structure. Experimental result shows more than 24 dB suppression for primary odd harmonics (3rd, 5th, and 7th). The measured relative low insertion loss (3.2 dB) and desired coupling (3.1 dB) as well as 89.7° phase difference between through and coupled ports for the center frequency are verified.
Keywords: branch-line coupler; harmonic suppression; miniaturization; stepped-impedance bent transmission line
Received: 2013-10-5
Published Online: 2014-5-28
Published in Print: 2014-7-1
©2014 by Walter de Gruyter Berlin/Boston
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Keywords for this article
branch-line coupler;
harmonic suppression;
miniaturization;
stepped-impedance bent transmission line
Articles in the same Issue
- Frontmatter
- Circularly Polarized Double Layered Printed Hemispherical Helical Antenna with a Parasitic Wire for Bandwidth Enhancement
- Broadband CPW-fed Circularly Polarized Falcate-shaped Monopole Antenna for UWB Applications
- Design of Microstrip LPF with Sharp Cut-off Frequency and Wide Stopband
- A Miniaturized Branch Line Coupler with Harmonic Suppression
- Thermal and Structural Analysis of Co-axial Coupler used in High Power Helix Traveling-Wave Tube
- Mie Series for Electromagnetic Scattering of a Conducting Sphere Coated with Chiral Metamaterials
- Experiments on Tree Reflectivity at C, X, K and Ka-bands
- Performance Analysis of Beamforming in Fixed-gain AF Relay Networks with Asymmetric Correlated Fading Channels
- Efficient Service Delivery for High-speed Railway Communications Using MIMO and Access Control Technique
- Relay Selection Based Double-Differential Transmission for Cooperative Networks with Multiple Carrier Frequency Offsets: Model, Analysis, and Optimization
- Collaborative Wideband Compressed Signal Detection in Interplanetary Internet
