Multi-Layer Dielectric Cavity Antennas with Extended Aperture Height

Lee, Kook Joo; Kim, Moonil; Lee, Jung Aun; Jeon, Sanggeun

doi:10.1587/transcom.e94.b.573

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…The antenna radiation bandwidth can be optimized by adjusting the cavity width a , height b , and depth c . For a fixed width and depth of the cavity, the HFSS simulation results including the inside‐plated via holes and feeding probe are well matched with the experiments [6]. In this letter, a simple equivalent model is used, as shown in Figure 1(b), for theoretical analysis and bandwidth optimization.…”

Section: Antenna Designmentioning

confidence: 69%

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Multilayer dielectric cavity antenna design for wide bandwidth

Lee

Kim

2012

Micro & Optical Tech Letters

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In this work, an iterative scheme is presented to solve the electromagnetic scattering problem via an iterative method. The presented method is simple and as such requires a fewer mathematical operations compared to more traditional CG and GMRES methods. The error reduction is almost monotonic, and the iteration procedure can be terminated at a desired level of accuracy. The iterative scheme can be easily applied to multiple incidence right-hand side vectors without restarting the algorithm. This is the advantage of the present scheme besides simplicity. Lastly, the algorithm is easily amenable for parallel processing. Presently, work is underway to make the algorithm more efficient and application to parallel computers. REFERENCES 1. R.F. Harrington, Field computation by moment methods, Macmillan, New York, 1968. 2. M. Hestenes and E. Stiefel, Method of conjugate gradients for solving linear systems, J Res Natl Bur Stand 49 (1952), 409-436. 3. Y. Saad and M.H. Schultz, GMRES: A generalized minimal residual algorithm for solving nonsymmetric linear systems, SIAM J Sci Stat Comput 7 (1986), 856-869. 4. J.R. Westlake, A handbook of numerical matrix inversion and solution of linear equations, Wiley, New York, 1968, pp. 56. 5. S.M. Rao, D.R. Wilton, and A.W. Glisson, Electromagnetic scattering by surfaces of arbitrary shape, IEEE Trans Antennas Propag 30 (1982), 409-418.ABSTRACT: The dimension optimization of a rectangular cavity antenna is presented in this letter. The cavity antenna is fabricated in a multilayer substrate. The antenna operation is based on lowest order TE 101 cavity mode. The antenna performance can be predicted using a simple equivalent model for a dielectric cavity. The estimated antenna bandwidth using the quality-factor of the cavity model indicates that the larger aperture and thinner thickness is the wider bandwidth becomes. In this letter, however, the aperture size is limited to operating in a single mode. The antenna sample is fabricated in multilayer FR4 substrates with a dielectric constant of 4.4, so that it operates at 7.2 GHz. The antenna with enhanced bandwidth has an aperture size of 32 Â 10 mm 2 and total thickness of 4.3 mm. The measured 10-dB bandwidth is 12.1% and the radiation pattern confirms that it operates in a single mode.ABSTRACT: In this article, a dual-band bandpass filter is proposed using two half wave length open loop resonators integrated in concentric topology. The outer set of resonators are realized to operate at lower pass band of 2.4 GHz which is coupled directly to input and output ports where as the inner set of resonators are designed at 3.5 GHz which is electromagnetically coupled to the outer resonator. To obtain wide passbands, enhanced coupling between the outer resonators is realized using ground slots just below the open loop sections of the resonators. The measured passband bandwidth at 2.45 and 3.5 GHz is Figure 5 Measured E-(a) and H-plane (b) patterns for the sample antenna with large size aperture

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Section: Antenna Designmentioning

confidence: 69%

“…These structures increase the complexity of the fabrication process. A new type of dielectric cavity antenna, which is embedded in the substrate, was recently introduced [6]. The dielectric cavity antenna can be fabricated using a printed‐circuit board (PCB) process, so that its fabrication is easy and its cost is low.…”

Section: Introductionmentioning

confidence: 99%

Multilayer dielectric cavity antenna design for wide bandwidth

Lee

Kim

2012

Micro & Optical Tech Letters

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“…Many kinds of millimeter-wave antennas have been developed for wireless communication systems [4]- [11]. Multi-layer configuration such as LTCC (Low Temperature Co-fired Ceramics) substrates is one of the promising candidates for integration of an antenna into the RF circuits [4], [5], [11]. The RF module including an antenna is in a metal package for shielding from noises.…”

Section: Introductionmentioning

confidence: 99%

Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas

Yano

Sakakibara

Kikuma

et al. 2012

IEICE Trans. Commun.

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Microstrip-line-fed broadband aperture antennas were developed in the millimeter-wave band. We have developed broadband microstrip-to-waveguide transitions to connect a microstrip line and a waveguide. The waveguide transmission line was replaced by a radiating waveguide with an aperture to compose a microstrip-line-fed aperture antenna. Two types of aperture antennas were developed. First, the microstrip substrate is fixed between the two metal plates of a waveguide with an aperture and a back-short waveguide. Second, both the microstrip feeding-line and the back-short waveguide are accommodated in the two-layer LTCC substrate. Broadband performance was achieved due to the potential of the transition. The characteristics of the developed antennas were evaluated by simulations and experiments in the millimeter-wave band.

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Millimeter-wave microstrip-feeding broadband aperture antennas in multi-layer configuration

Sakakibara

Hori

Kikuma

et al. 2012

2012 6th European Conference on Antennas and Propagation (EUCAP)

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Two types of microstrip-feeding broadband aperture antennas in multi-layer configuration are developed in the millimeter-wave band. First, the microstrip substrate is fixed between two metal plates of a back-short waveguide and a waveguide with an aperture. Second, both the microstrip feedingline and the back-short waveguide are accommodated in the double-layer LTCC substrate. Broad bandwidth was achieved due to the multiple resonances. The characteristics of the developed antennas were evaluated by simulations and experiments in the millimeter-wave band.

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Multi-Layer Dielectric Cavity Antennas with Extended Aperture Height

Cited by 3 publications

References 6 publications

Multilayer dielectric cavity antenna design for wide bandwidth

Multilayer dielectric cavity antenna design for wide bandwidth

Millimeter-Wave Microstrip-Line-Fed Broadband Waveguide Aperture Antennas

Millimeter-wave microstrip-feeding broadband aperture antennas in multi-layer configuration

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