Results 31 to 40 of about 668 (183)

Scattering Suppression of Closely-Packed Cross-Band Patch Antennas Using Absorptive/Reflectionless Filtering Techniques

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
This paper presents a novel method for cross-band scattering cancelation in closely-spaced antennas inspired by absorptive/reflectionless filtering principles.
Shiyan Wang   +5 more
doaj   +1 more source

A Compact Horizontal Coaxial to Ridge Gap Waveguide Transition for Ka‐Band

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2023, Issue 1, 2023., 2023
This paper presents a novel type of compact inline coaxial to ridge gap waveguide (RGW) transition, which covers the whole Ka frequency band. The structure connects with the connector′s inner conductor through a rectangular probe directly. The probe is set in nail bed without any extra parts.
Changjian Tao   +3 more
wiley   +1 more source

Design and Investigation of Dual-Band 2 × 2 Elements MIMO Antenna-Diplexer Based on Half-Mode SIW

open access: yesIEEE Access, 2022
In this article, a compact dual-band, 2-elements antenna-diplexer is investigated and extended to a $2\times 2$ multi-input and multi-output (MIMO) antenna.
Buela Pramodini   +2 more
doaj   +1 more source

Applied Cavity Perturbation Used for Frequency Identification of Channel Ports in Manifold‐Coupled Multiplexers

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2023, Issue 1, 2023., 2023
We investigate a practical technique for deembedding the channel filter S‐parameters of manifold‐coupled multiplexers (MUXs), without detaching filters from the manifold. The method is applicable for MUXs with an arbitrary number of channels and can be used for the device regardless of its bandwidth, guard band, or loss of filters. We reconfigure the N‐
Sayyed Reza Mirnaziry   +4 more
wiley   +1 more source

Study of Clusters of Defects in Low-cost Digitally Fabricated Frequency Selective Surfaces [PDF]

open access: yes, 2014
Additive process fabrication of inexpensive FSS screens might lead to errors in the printing or to damage at installation owing to miss-handling. This paper investigates the introduction of clusters of missing elements in different locations and their ...
Turki, Badredin   +14 more
core   +1 more source

Four-Port Dual-Mode Diplexer with High Signal Isolation

open access: yes, 2020
An ease of four-port dual-mode diplexer with high signal isolation is presented. A compact dual-mode diplexer with high signal isolation between the Rx and Tx modules is achievable by only using one resonator filter topology.
Jessada Konpang   +1 more
core   +1 more source

Multiple Order Dual-Band Active Ring Filters with Composite Right/Left Handed Cells

open access: yes, 2010
In this paper, a novel dual-band active filter topology is presented. The non-linear phase response of a composite right/left-handed cell is used to achieve the desired dual-band performance.
García Pérez, Oscar Alberto   +7 more
core   +1 more source

D-band waveguide diplexer fabricated using micro laser sintering [PDF]

open access: yes, 2022
We report a D-band waveguide diplexer, with two passbands of 130 - 134 GHz and 151.5 - 155.5 GHz, fabricated using micro laser sintering (MLS) additive manufacturing with stainless-steel.
Beardsley, Mat   +11 more
core   +1 more source

Designs of Diplexing Power Dividers

open access: yesIEEE Access, 2018
A diplexer with different-frequency power dividers cascaded to its output ports can split a signal into different frequency bands for power dividing functions. However, the design of a diplexer usually requires two different frequency filters. This paper
Pu-Hua Deng   +3 more
doaj   +1 more source

A Low-Cost Dual-Band RF Power Amplifier for Wireless Communication Systems [PDF]

open access: yesRadioengineering, 2023
This paper presents a design of a low-cost concurrent dual-band power amplifier operating at 1.8 GHz and 2.6 GHz. The design combines the signal splitting and second harmonic suppression techniques.
D. M. Luong, Q. K Trinh, T. A. Nguyen
doaj  

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