Nonuniform compact Ultra-Wide Band Wilkinson power divider with different unequal split ratios

Saleh, Sahar; Ismail, Widad; Abidin, Intan Sorfina Zainal; Jamaluddin, Mohd Haizal; Al-Gailani, Samir A.; Al‐Zoubi, Asem S.; Bataineh, Mohammed H.

doi:10.1080/09205071.2019.1691944

Cited by 9 publications

(15 citation statements)

References 22 publications

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“…To design a compact and effective array for UWB applications, at 3.1-10.6 GHz, the compact 2:1 NTL WPD [27] is chosen in this work as a feeding network to the 2 × 1 VTSA array (Array 1). As a contribution and to demonstrate the performance of the NTL WPD despite the 33.31% compactness in its λ/4 transformers, the designed 2:1 UWB tapered transmission line (TTL) WPD based on the special TTL equation [30] is used here as a benchmark as shown in Figure 2.…”

Section: Simple Compact 2 × 1 Uwb Linear Vtsa Array (Array 1)mentioning

confidence: 99%

“…To that end, straightforward integration of equipment such as power dividers with antennas will aid in decreasing the overall size and power budget of the system. For this purpose, as a novelty of this work, at the UWB frequency band (3.1-10.6 GHz), the proposed compact UWB unequal split NTL WPD [27] is exploited as a feeding network for the compact UWB VTSA [1] and novel Vivaldi nonuniform slot antenna (VNSA) [28] to design, fabricate, and test simple compact Vivaldi arrays. Array 1 is achieved by integrating the designed compact UWB VTSA [1] and 2:1 unequal split NTL WPD [27].…”

Section: Introductionmentioning

confidence: 99%

“…For this purpose, as a novelty of this work, at the UWB frequency band (3.1-10.6 GHz), the proposed compact UWB unequal split NTL WPD [27] is exploited as a feeding network for the compact UWB VTSA [1] and novel Vivaldi nonuniform slot antenna (VNSA) [28] to design, fabricate, and test simple compact Vivaldi arrays. Array 1 is achieved by integrating the designed compact UWB VTSA [1] and 2:1 unequal split NTL WPD [27]. Then, 52% compactness improvement with 6.76% BW enhancement is achieved in Array 2 by integrating the compact UWB VNSA and 3:1 unequal split WPD designed in [28] and [27], respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Array 1 is achieved by integrating the designed compact UWB VTSA [1] and 2:1 unequal split NTL WPD [27]. Then, 52% compactness improvement with 6.76% BW enhancement is achieved in Array 2 by integrating the compact UWB VNSA and 3:1 unequal split WPD designed in [28] and [27], respectively. This work is regarded as proof of concept for the effectiveness of applying the NTL [27,29] and VNSPA [28] theories for compactness while maintaining or improving performance.…”

Section: Introductionmentioning

confidence: 99%

“…Then, 52% compactness improvement with 6.76% BW enhancement is achieved in Array 2 by integrating the compact UWB VNSA and 3:1 unequal split WPD designed in [28] and [27], respectively. This work is regarded as proof of concept for the effectiveness of applying the NTL [27,29] and VNSPA [28] theories for compactness while maintaining or improving performance. Due to the good characteristics of the proposed arrays in terms of ease of integration, small size, wide BW, high gain, and stable directive radiation patterns, they are good candidates for breast cancer detection (BCD) applications.…”

Section: Introductionmentioning

confidence: 99%

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Simple Compact UWB Vivaldi Antenna Arrays for Breast Cancer Detection

Saleh,

Saeidi,

Timmons

2024

Telecom

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In this study, at ultra-wideband (UWB) frequency band (3.1–10.6 GHz), we propose the use of compact 2:1 and 3:1 nonuniform transmission line Wilkinson power dividers (NTL WPDs) as feeding networks for simple 2 × 1 linear UWB Vivaldi tapered and nonuniform slot antenna (VTSA and VNSA) arrays. The 2:1 and 3:1 tapered transmission line (TTL) WPDs are designed and tested in this work as benchmarks for NTL WPDs. The VTSA array provides measured S11 < −10.28 dB at 2.42–11.52 GHz, with a maximum gain of 8.61 dBi, which is 24.39% higher than the single element. Using the VNSA array, we achieve 52% compactness and 6.76% bandwidth enhancement, with good measured results of S11 < −10.2 dB at 3.24–13 GHz and 15.11% improved gain (8.14 dBi) compared to the VNSA single element. The findings show that the NTL and Vivaldi nonuniform slot profile antenna (VNSPA) theories are successful at reducing the size of the UWB WPD and VTSA without sacrificing performance. They also emphasize the Vivaldi antenna’s compatibility with other circuits. These compact arrays are ideal for high-resolution medical applications like breast cancer detection (BCD) because of their high gain, wide bandwidth, directive stable radiation patterns, and low specific absorption rate (SAR). A simple BCD simulation scenario is addressed in this work. Detailed parametric studies are performed on the two arrays for impedance-matching enhancement. The computer simulation technology (CST) software is used for the simulation. Hardware measurement results prove the validity of the proposed arrays.

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Section: Simple Compact 2 × 1 Uwb Linear Vtsa Array (Array 1)mentioning

confidence: 99%