Design of LTCC Wideband Patch Antenna for LMDS Band Applications

Chin, Kuo‐Sheng; Chang, Hsien-Tsung; Liu, Jia-An

doi:10.1109/lawp.2010.2095406

Cited by 13 publications

(4 citation statements)

References 9 publications

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“…Usually, the number of channels as well as the general frequency plan is determined by the available spectrum in a specified market and the aggregate capacity demanded in a particular geographic zone. However, LMDS typically operates in the higher radio frequencies between 27.5 GHz and 31 GHz [16,113,151,154]. As a result of this, it gives considerably better bandwidth compared with MMDS.…”

Section: Local Multipoint Distribution Servicementioning

confidence: 99%

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

et al. 2021

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There has been a growing interconnection across the world owing to various multimedia applications and services. Fixed wireless access (FWA) is an attractive wireless solution for delivering multimedia services to different homes. With the fifth-generation (5G) and beyond mobile networks, the FWA performance can be enhanced significantly. However, their implementation will present different challenges on the transport network due to the incessant increase in the number of required cell-sites and the subsequent increase in the per-site requirements. This paper presents a comprehensive tutorial on the enabling technologies, design considerations, requirements, and prospects of broadband schemes. Furthermore, the related technical challenges of FWA are reviewed, and we proffer potential solutions to address them. Besides, we review various transport network options that can be employed for FWA deployment. In this regard, we offer an in-depth discussion on their related requirements for different use cases. Moreover, we give an insight into the 3GPP RAN functional split implementations and implications on the 5G FWA transport network solutions. The concepts of virtualized RANs for attending flexibly to the dynamic nature of different use cases are also presented.

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Section: Local Multipoint Distribution Servicementioning

confidence: 99%

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

et al. 2021

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“…In response to the growing demand for an additional frequency spectrum, mostly for fixed/mobile 5G applications that require significant bandwidth to support higher speeds >1.0 Gbps at a lower latency, the Federal Communications Commission (FCC) has ordered the A1 channel and reallocated it as part of the new Upper Microwave Flexible Use License (UMFUS). The ordered part of the frequency spectrum has been transformed into a new licensing system based on two 425 MHz wide blocks (blocks L1 and L2) [10][11][12][13]. The division of the LMDS spectrum in the 28 GHz frequency band is presented in Figure 1.…”

Section: Frequency Range For Local Multipoint Distribution Servicementioning

confidence: 99%

“…High-speed backhaul, "at home" 5G/FWA, and other applications make use of the ability to implement fixed PTP (point-to-point) and PTMP (point-to-multi-point) configurations. The 28 GHz band can also be used for mobile applications, which are currently a key pillar of 5G deployment championed by national carriers and other organizations [11][12][13].…”

Section: Frequency Range For Local Multipoint Distribution Servicementioning

confidence: 99%

Broadband Microstrip Antenna for 5G Wireless Systems Operating at 28 GHz

2020

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Communication systems have been driven towards the fifth generation (5G) due to the demands of compact, high speed, and large bandwidth systems. These types of radio communication systems require new and more efficient antenna designs. This article presents a new design solution of a broadband microstrip antenna intended for use in 5G systems. The proposed antenna has a central operating frequency of 28 GHz and can be used in the LMDS (local multipoint distribution service) frequency band. The dimensions of the antenna and its parameters have been calculated, simulated, and optimized using the FEKO software. The antenna has a compact structure with dimensions (6.2 × 8.4 × 1.57) mm. Rogers RT Duroid 5880 material was used as a substrate for the antenna construction, which has a dielectric coefficient of 2.2 and a thickness of 1.57 mm. The antenna described in the article is characterized by a low reflection coefficient of −22.51 dB, a high energy gain value of 3.6 dBi, a wide operating band of 5.57 GHz (19.89%), and high energy efficiency.

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“…In these cases, signal vias behave similarly to a lowpass filter, attenuating high-frequency components [13][14][15][16][17][18]. Fig.…”

Section: Differential Aperture-coupled Patch Antennamentioning

confidence: 99%

LTCC Differential-Fed Patch Antennas With Rat-Race Feeding Structures

Chin

Liu²,

Chang³

et al. 2012

PIER C

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Abstract-This paper presents differential-fed patch antennas with excellent cross-polarization. This paper provides a detailed graphic illustration of factors that lead to deteriorated H-plane crosspolarization by the conventional single-ended feeding probes. A novel differential rat-race feeding structure was constructed to allow easy impedance matching. An experimental antenna was realized on lowtemperature co-fired ceramic (LTCC) at 8 GHz. An excellent crosspolarization of less than −22.5 dB was achieved. When the operation frequency is high, the parasitic inductance caused by feeding probes may degrade the performance of antennas. This paper further proposes the use of differential aperture-coupled structures at high frequencies. An aperture-coupled antenna realized at 40 GHz with low crosspolarization < −15 dB has been achieved.

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Design of LTCC Wideband Patch Antenna for LMDS Band Applications

Cited by 13 publications

References 9 publications

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

Towards Enhanced Mobile Broadband Communications: A Tutorial on Enabling Technologies, Design Considerations, and Prospects of 5G and beyond Fixed Wireless Access Networks

Broadband Microstrip Antenna for 5G Wireless Systems Operating at 28 GHz

LTCC Differential-Fed Patch Antennas With Rat-Race Feeding Structures

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