LTCC-Based Antenna-in-Package Array for 5G User Equipment With Dual-Polarized Endfire Radiations at Millimeter-Wave Frequencies

Chou, Hsi‐Tseng; Chou, Sheng-Ju; Deng, Joseph D. S.; Chang, Chia‐Hung; Yan, Zhi-Da

doi:10.1109/tap.2021.3118819

Cited by 30 publications

(9 citation statements)

References 19 publications

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“…In addition, the dielectric properties of the core and prepeg layers does not vary to a large extent with each other. Furthermore, the proposed AiP design consists of three substrate layers with a total thickness of 0.5 mm (~0.05-λ0 at 28 GHz), which is very thin in comparison with other reported 5G mmWave AiPs in the literature [9]- [11]. The top layer has a rectangular patch radiator with a length of 2.7 mm, corresponding to a half-wavelength at 29.5 GHz.…”

Section: Beam-tilted Single-patch Aip Designmentioning

confidence: 99%

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Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Magray

Tarng

2022

IEEE Access

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A low-profile, wideband antenna-in-package (AiP) design is proposed for 5G mmWave mobile applications. The aperture-coupled feeding incorporated with the microstrip feed line through the slots in the ground is used to excite the patch antenna. Firstly, a thin quarter-wave shorted patch antenna (QW-SPA) with the dominant 𝑇𝑀 1/2,0,0 𝑧 mode is realized. To broaden the operating band, the QW-SPA is extended along its resonant length so that the 𝑇𝑀 1,0,0 𝑧 mode can also be excited. The offset introduced into the two slots together with the additional shorting via wall are applied to enhance the beam tilt toward the end-fire direction. The proposed single-patch design shows a wide fractional bandwidth, covering the 5G mmWave band n257 (26.5-29.5 GHz). Furthermore, to increase more beam tilt, the differential-fed, two-patch sub-array formed by two QW-SPAs spaced a half-wavelength at 28 GHz apart is also presented. Compared with the singlepatch design, the beam-tilt enhancement of around 10-27 degrees is obtained over the desired frequency band with the peak gain of around 8.2 dBi for the sub-array AiP design.INDEX TERMS patch antennas, antenna-in-package (AiP), fifth generation (5G) antennas, mmWave, beam tilt, thin quasi-end-fire antennas, aperture-coupled feed, differential feed

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Section: Beam-tilted Single-patch Aip Designmentioning

confidence: 99%

“…Also, the height of the antenna is 0.11-λ0 at 38 GHz, which is too large to be implemented in modern mobile devices. A dual-polarized LTCC 18-layered end-fire antenna array is presented in [9]. The antenna can cover the entire n257 frequency band without any beam tilt.…”

Section: Introductionmentioning

confidence: 99%

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Magray

Tarng

2022

IEEE Access

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“…Therefore, several antenna were presented at 5G sub-6GHz and 5G mmWaves [2][3][4][5][6][7][8][9][10]. In [2], a small, wideband, partially slotted ground, rectangular-patch antenna working at sub-6GHz is presented.…”

Section: Introductionmentioning

confidence: 99%

“…A wideband, low-profile antenna-in-package (AiP) design is presented for 5G mmWave n257 (26.5-29.5 GHz) band mobile applications in [5]. [6] presents an antenna-in-package (AiP) with endfire and dual polarisation operating at 28 GHz. A new miniaturized dual-band quarter-wave half-slot antenna for quasi-millimeter wave applications that operates at 24 GHz and 28.5 GHz is addressed in [7].…”

Section: Introductionmentioning

confidence: 99%

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A dual-band U-shaped microstrip antenna for 5G mmWave applications

Chandrasekhar Rao,

Srinivasa Rao,

Vinod Kumar

et al. 2023

J. Phys.: Conf. Ser.

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This research proposes a compact dual-band patch antenna for 5G mmWave wireless communication applications. The 5 × 4.8 × 0.508 mm3 sized antenna is made of Rogers RT/duroid 5880(tm) dielectric material and is fed via a 50-Ω microstrip feedline. A rectangular slot was used on the radiating patch to create resonance at the 30GHz band from 29.2GHz to 31GHz. Another slot was etched from the ground to obtain another resonance at 49GHz from 48GHz to 50.1GHz. The S11 of -10dB and VSWR of less than 2 indicates that the designed bands have strong impedance matching capabilities. Peak gain of 4.99 dBi at 30GHz and 7.39 dBi at 49GHz are attained, as well as maximum radiation efficiency of more than 90% and sustained omnidirectional radiation characteristics are achieved. The results demonstrate that the suggested antenna is appropriate for next-generation wireless applications.

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Millimeter‐wave end‐fire dual‐polarized frequency scanning antenna using LTCC technology

Yu,

Wei,

Sun

et al. 2024

Electronics Letters

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This letter proposes a millimeter‐wave dual‐polarized (DP) end‐fire frequency scanning antenna utilizing low temperature co‐fired ceramic (LTCC) technology. The antenna features DP radiating elements, each comprising a quasi‐Yagi antenna for horizontal polarization (H‐pol) and a pyramidal horn antenna for vertical polarization (V‐pol). These elements are excited via a mode‐composited transmission line (MCTL), integrating substrate integrated coaxial line (TEM mode) with substrate integrated waveguide (TE10 mode). To mitigate phase imbalances between polarizations during beam scanning, a delay line is embedded in each quasi‐Yagi element, ensuring consistent scanning ranges for the two polarizations. Furthermore, the implementation of amplitude weighting in the feeding networks contributes to the enhancement of antenna efficiency. A 1 × 8‐element prototype was fabricated and its performance is assessed. The results show closely matched beam scanning ranges for the two polarizations (±28° for H‐pol and −30° to +34° for V‐pol) across the 26–29 GHz frequency band, with a measured maximum peak gain exceeding 9.2 dBi for both polarizations. The proposed design emerges as a promising candidate for compact mmW frequency scanning front‐end antenna systems.

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LTCC-Based Antenna-in-Package Array for 5G User Equipment With Dual-Polarized Endfire Radiations at Millimeter-Wave Frequencies

Cited by 30 publications

References 19 publications

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

A dual-band U-shaped microstrip antenna for 5G mmWave applications

Millimeter‐wave end‐fire dual‐polarized frequency scanning antenna using LTCC technology

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