60-GHz Patch Antennas and Arrays on LTCC With Embedded-Cavity Substrates

Lamminen, Antti; Säily, Jussi; Vimpari, Antti

doi:10.1109/tap.2008.927560

Cited by 249 publications

(92 citation statements)

References 15 publications

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“…It is shown that the gridded parasitic patch antenna has the highest gain for the smallest antenna aperture. Compared to the antennas reported in [2,7,12,18,24] the proposed antenna has improved return loss characteristics in combination with high gain. Moreover, the gridded structure of the parasitic patch can be used for a simple beam shift realization by implementing shorting strips, with just slight decrease in bandwidth and gain.…”

Section: Introductionmentioning

confidence: 86%

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Gridded Parasitic Patch Stacked Microstrip Antenna With Beam Shift Capability for 60 GHZ Band

Bondarik¹,

Sjöberg²

2015

PIER B

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A microstrip antenna design is introduced in which a rectangular microstrip patch is coupled electromagnetically with a gridded rectangular patch placed above. The gridded patch consists of nine identical rectangular parts separated by a distance which is much smaller than a free space wavelength for a central frequency. The antenna is designed to operate in the 60 GHz band and is fabricated on a conventional PTFE (polytetra uoroethylene) thin substrate. The antenna return loss bandwidth is comparable to a single parasitic patch aperture coupled antenna, while the proposed antenna gain is higher. Measurement results are in good agreement with simulation. Measured 10 dB return loss bandwidth is from 54 GHz up to 67 GHz. It fully covers the unlicensed band around 60 GHz. The measured antenna realized gain at 60 GHz is close to 8 dB, while the simulated antenna radiation e ciency is 85%. A simple beam shifting method is possible for this antenna structure by connecting adjacent outside parts in the gridded patch. The designed antenna is suitable for a high speed wireless communication system in particular for a user terminal in a fth generation (5G) cellular network.

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Section: Introductionmentioning

confidence: 86%

“…Designs for 60 GHz are reported in several papers. An aperture coupled patch antenna is described in [12]. The antenna uses an aperture and a patch as two coupled resonators.…”

Section: Introductionmentioning

confidence: 99%

Gridded Parasitic Patch Stacked Microstrip Antenna With Beam Shift Capability for 60 GHZ Band

Bondarik¹,

Sjöberg²

2015

PIER B

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“…The antenna we propose avoids use of complex (and expensive for manufacturing) previously investigated techniques such as air-cavity or punching holes and demonstrates a larger than other LTCC antennas [5][6][7] relative bandwidth. The antenna is based on an ASP antenna.…”

Section: A) Antenna Geometrymentioning

confidence: 99%

A novel LTCC differentially Fed UWB antenna for the 60 GHz band

Yang

Yarovoy

Valavan

et al. 2011

Int. j. microw. wirel. technol.

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In this paper a novel differentially fed Ultra-Wide Band (UWB) antenna in low-temperature co-fired ceramics (LTCC) technology to be used in the 60 GHz band for integrated RF front-ends is presented. The antenna is based on the aperture stacked patch fed via H-shaped aperture to achieve more than 10 GHz operational bandwidth. The antenna is fed by a parallel-wire transmission line which enables the antenna to be directly integrated with differential Monolithic Microwave Integrated Circuits (MMICs). To alleviate influence of the surface waves (efficiently excited in LTCC material due to its high dielectric constant) on the antenna radiation and realize uni-directional radiation patterns, a dedicated shield is added to the antenna. The measured results of the shielded antenna showed that the antenna has an operational bandwidth from 51 GHz to over 65 GHz, the gain is about 3.5-8 dBi, and 25 dB beamwidth is about +308. The measurement results also demonstrated that the shield indeed improves the antenna impedance bandwidth, gain, and radiation patterns substantially. I . I N T R O D U C T I O NThe demand for using the unlicensed 60 GHz band for communication and radar applications is growing rapidly. The large available bandwidth in the 60 GHz band is appealing to high data rate multimedia communications. Furthermore, the 60 GHz band is very suitable for ultra-high-resolution imaging with short-range radar, thus it is attractive for such application as concealed weapon detection (CWD) [1]. These demands have motivated many developments in the 60 GHz systems, especially in the integrated 60 GHz front-end. The low-temperature co-fired ceramics (LTCC) technology provides an effective solution enabling integration of passive components including antennas and filters with MMICs in a single, cost-effective package. In addition, the multilayer nature of LTCC technology gives the possibility to realize three-dimensional structures such as cavities and vias. The passive components can then be placed at different layers, which enable miniaturization of modules. Therefore, the research of integrated LTCC antennas is very popular, such as in [2][3][4]. Challenges of realizing antennas with the LTCC material in the mm-wave region are related to fabrication accuracy and limitations on structures such as lines, metal plates, or vias. In addition, high relative permittivity of the LTCC material may limit the bandwidth of the antenna and supports excitation of the surface waves in the substrate. As a result, several attempts have been used to lower the effective dielectric constant such as using an air cavity [5,6] or punching holes [7]. However, these approaches will complicate the manufacturing of the antenna, lower the yield rate, and increase cost. The operational bandwidth of LTCC antennas reported in literature is typically below 18% [6,8].This paper presents a novel differentially fed UWB antenna for CWD imaging radar. The antenna should be manufactured using the LTCC technology to be ready for integration with 60 GHz MMICs ...

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“…elements and a distributed microstrip line feed network operating around 14 GHz. Thirdly, we mention the aperture-coupled microstrip-line fed patch array proposed in [10] for gigabit-WLAN applications as an example of a planar antenna feed network operating at 60 GHz. The antenna consists of 16 elements fed by a microstrip line distribution network.…”

Section: Introductionmentioning

confidence: 99%

“…If port(i) is the excited port we require that the fields for z < 0 are extinguished and the fields for z > 0 represent the TE 10 …”

mentioning

confidence: 99%