A Dually Polarized Six-Port Junction Based on Polarization-Selective Coupling for Polarization-Inclusive Remote Sensing

Sakr, Ahmed A.; Dyab, Walid; Wu, Ke

doi:10.1109/tmtt.2018.2834513

Cited by 24 publications

(7 citation statements)

References 25 publications

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“…Here we utilized PSC-OMT as a compact feeding network since it provides two orthogonal modes of TE10 and TE01. The dimensions of the PSC-OMT were calculated based on the analysis of [61] and applied to the proposed design. In addition, a transition between the PSC-OMT and the WR28 waveguide is designed to support the operation over the frequency range of interest (35 < fGHz < 39).…”

Section: Experimental Validation and Configuration Of Siw-dp-lwamentioning

confidence: 99%

A Monolayer Dually Polarized High-Order Space Harmonic Leaky-Wave SIW Antennas With Fixed and Scanning Beam Capability

Rahimi

Sharawi

2022

IEEE Open J. Antennas Propag.

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In this work, the concept of high-order space harmonics (HSHs) applied to a hybrid form of nonradiative dielectric (NRD) waveguide and substrate-integrated square waveguide (SIW) involving both TE10 and TE01 modes is investigated with aim to develop multi-functional dually polarized leaky-wave antennas (DP-LWAs). A polarization-selective coupling (PSC) mechanism is used to guide the two orthogonally oriented modes in the hybrid structure to achieve a polarization diversity feature. The polarization effect on unit-cell geometrical structures is examined for different characteristics of LWA such as propagation constant behavior, leakage ratio, and scanning range variation. In addition, we demonstrate how the extrinsic characteristics of HSHs in a one-dimensional periodic LWA and its unit-cell analysis can provide design flexibility through two case studies. In the first case of demonstration, we show a dually polarized multi-beam LWA design with wide scanning capability in which we use both even and odd HSHs of n ϵ [-1, -2]). The second antenna design case is concerned with a DP-LWA having the capability of fixed and scanning beams operation by using a combinatory set of PSC and four HSHs of n ϵ [-1, -2, -3, -4]. Two DP-LWA prototypes are demonstrated as proofs of concept, and the obtained experimental results show a very good agreement with their simulation and analysis counterparts.INDEX TERMS One-dimensional periodic leaky-wave antenna (1D-periodic LWA), Higher-order space harmonics (HSHs), Polarization-selective coupler (PSC), Nonradiative dielectric (NRD) waveguide, Substrate integrated waveguide (SIW), Dually polarized antenna (DPA).

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Section: Experimental Validation and Configuration Of Siw-dp-lwamentioning

confidence: 99%

A Monolayer Dually Polarized High-Order Space Harmonic Leaky-Wave SIW Antennas With Fixed and Scanning Beam Capability

Rahimi

Sharawi

2022

IEEE Open J. Antennas Propag.

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“…Designing a MIMO antenna system is a complex task since modern communication devices are desired to be compact and slim. A wide scale placement of a 5G network requires the preparation of antenna infrastructure and the execution of new technical clarifications [5,6]. The millimeter wave spectrum starting from 20 GHz to 300 GHz is well known for its multi gigabit/s transmission rate and larger bandwidth availability to meet the needs of 5G applications.…”

Section: Introductionmentioning

confidence: 99%

A Four Element mm-Wave MIMO Antenna System with Wide-Band and High Isolation Characteristics for 5G Applications

et al. 2023

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In this article, we propose a light weight, low profile Multiple Input Multiple Output (MIMO) antenna system for compact 5th Generation (5G) mmwave devices. Using a RO5880 substrate that is incredibly thin, the suggested antenna is made up of circular rings stacked vertically and horizontally on top of one another. The single element antenna board has dimensions of 12 × 12 × 0.254 mm3 while the size of the radiating element is 6 × 2 × 0.254 mm3 (0.56λ0 × 0.19λ0 × 0.02λ0). The proposed antenna showed dual band characteristics. The first resonance showed a bandwidth of 10 GHz with a starting frequency of 23 GHz to an ending frequency point of 33 GHz followed by a second resonance bandwidth of 3.25 GHz ranging from 37.75 to 41 GHz, respectively. The proposed antenna is transformed into a four element Linear array system with size of 48 × 12 × 0.254 mm3 (4.48λ0 × 1.12λ0 × 0.02λ0). The isolation levels at both resonance bands were noted to be >20 dB which shows high levels of isolation among radiating elements. The MIMO parameters such as Envelope Correlation Co-efficient (ECC), Mean Effective Gain (MEG) and Diversity Gain (DG) were derived and were found to be in satisfactory limits. The proposed MIMO system model is fabricated and through validation and testing of the prototype, the results were found to be in good agreement with simulations.

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“…With the increasing demand for low loss, low complexity and cost-effectiveness, six-port junctions (SPJs) have been extended to receivers to replace conventional mixers [3]. Lots of works have dedicated to the design and application of SPJs [4]- [7]. The principle of SPJ in homodyne and heterodyne receivers was detailed in [4], while [5] provided a thorough review.…”

Section: Introductionmentioning

confidence: 99%

Subterahertz Filtering Six-Port Junction

Chen

Salek

Wang

2022

IEEE Trans. Microwave Theory Techn.

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This paper presents a D-band E-plane 90° filtering coupler and a D-band six-port junction (SPJ), both working at 150 GHz. The coupler is formed by ten resonators, having a fourth-order Chebyshev response. Two of the couplers were combined with a 90° 3-dB branch-line coupler to build the filtering SPJ with twenty resonators in total. Inheriting from the filtering coupler, the SPJ also has a fourth-order Chebyshev response. A coupling matrix (CM) consisting of both resonant and non-resonant nodes, based on the coupling topology, was constructed to predict the theoretical responses. Guided by this coupling matrix, the coupler and the SPJ were designed and modelled. In addition, two silicon-based absorber chips were designed and implemented as two matched loads in the filtering SPJ. The SPJ was optimized, fabricated and tested. The center frequency of the SPJ is 150 GHz and the bandwidth is 4 GHz. Simulation shows 0.5 to 0.7 dB insertion loss at 150 GHz and maximum 3° phase error in the working band. The measurement gives the same center frequency and bandwidth. The response shows 0.7 to 2.0 dB insertion loss at 150 GHz and maximum 15° phase error in the working band.

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A Dually Polarized Six-Port Junction Based on Polarization-Selective Coupling for Polarization-Inclusive Remote Sensing

Cited by 24 publications

References 25 publications

A Monolayer Dually Polarized High-Order Space Harmonic Leaky-Wave SIW Antennas With Fixed and Scanning Beam Capability

A Monolayer Dually Polarized High-Order Space Harmonic Leaky-Wave SIW Antennas With Fixed and Scanning Beam Capability

A Four Element mm-Wave MIMO Antenna System with Wide-Band and High Isolation Characteristics for 5G Applications

Subterahertz Filtering Six-Port Junction

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