Ka-Band Dual-Frequency Single-Slot Antenna Based on Substrate Integrated Waveguide

Jiang, Wan; Liu, Changjun

doi:10.1109/lawp.2017.2781219

Cited by 24 publications

(9 citation statements)

References 14 publications

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“…The length of the bowtie slot can be calculated by

l_{slot} = λ_{0}^{2} / \sqrt{2 (ε_{r} + 1)}

[23, 24 ], here

λ_{0}

denotes free‐space wavelength and

ε_{normalr}

is the relative dielectric constant. With the same size and position, a bowtie slot on the bottom layer of TLY‐5 is etched to excite the ME dipole on the upper layer.…”

Section: Transition Designmentioning

confidence: 99%

Low profile broadband substrate‐integrated waveguide to rectangular waveguide transition for W‐band automotive radar

et al. 2020

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Low profile broadband substrate‐integrated waveguide to rectangular waveguide (RWG) transitions have been proposed for RF verification of W‐band automotive radar. The transition is designed on a PCB, which is assembled between the radar board and instrument waveguide port. In the design of the transition, a magnetoelectric (ME) dipole is introduced to excite the basic mode of RWG, and a bowtie slot is designed to excite the ME dipole with a broadband performance. The measured frequency band of back‐to‐back transitions is 68.4–85.3 GHz for a 5 mil RO3003 covered multilayer radar board and 68.6–89.3 GHz for a 10 mil RO3003 covered board, respectively. The calibrated single transition loss is 0.58 and 0.33 dB, respectively. The proposed low profile transitions are robust to assembly errors and convenient for fast RF verification of automotive front‐end in the design stage.

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“…The length of the bowtie slot can be calculated by

l_{slot} = λ_{0}^{2} / \sqrt{2 (ε_{r} + 1)}

[23, 24 ], here

λ_{0}

denotes free‐space wavelength and

ε_{normalr}

is the relative dielectric constant. With the same size and position, a bowtie slot on the bottom layer of TLY‐5 is etched to excite the ME dipole on the upper layer.…”

Section: Transition Designmentioning

confidence: 99%

Low profile broadband substrate‐integrated waveguide to rectangular waveguide transition for W‐band automotive radar

et al. 2020

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“…The SIW slot antenna arrays, which are one of the basic types of aperture antenna arrays, have extensively been studied both analytically and experimentally [28][29][30][31][32]. By employing balun characteristics of the SIW with intrinsic CM suppression, as a design example, a 1 × 4 single-row differential SIW slot antenna array with differential transition structure using paired microstrips is shown in Fig.…”

Section: Design Of Single-row Differential Siw Slot Antenna Arraymentioning

confidence: 99%

Differential SIW slot antenna array with intrinsic common‐mode rejection

Deng

Xue

Sun

et al. 2020

IET Microwaves, Antennas & Propagation

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In this study, the differential substrate integrated waveguide (SIW) slot antenna array is proposed with intrinsic common‐mode (CM) rejection. Through field analysis, it is found that the SIW is a natural differential transmission line which can only transmit differential signal due to the characteristics of hybrid electromagnetic boundary perfect electrical conductor and perfect magnetic conductor. Hence, it can also be seen as a natural balun with intrinsic CM suppression. Thus, a compact 1 × 4 differential SIW slot antenna array with high CM rejection can be designed using the differential microstrip transition structure which has little conversion between differential‐mode (DM) and CM. For the design of differential SIW passive device, the DM equivalent half circuit is a single‐ended SIW device with height halved. Further, the 4 × 4 differential SIW antenna array with high CM rejection can be designed with a T‐shaped differential SIW four‐way power divider. The 1 × 4 and 4 × 4 differential SIW antenna arrays are fabricated and good agreements between the simulated and measured results demonstrate the validity of proposed configurations.

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“…In these designs, dual‐frequency property has realized by using complicated slots or active components. Furthermore, SIW‐based dual‐frequency cavity‐backed slot antennas have been suggested 11‐13 . Dual‐frequency operation has realized using different cavity modes and their distinct frequency band tuning is interdependent.…”

Section: Introductionmentioning

confidence: 99%

Design of half‐mode substrate integrated cavity inspired dual‐band antenna

Althuwayb

Al‐Hasan

Kumar

et al. 2020

Int J RF Microw Comput Aided Eng

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A novel and compact design of dual-band antenna, based on substrate integrated cavity is developed. The antenna comprises a half-mode cavity, an open-ended longitudinal slot, and a printed inset-feed mechanism. Finally, the proposed design is fabricated and its results are validated. It shows the measured impedance bandwidths of 3.51% and 1.40% at 8.8 and 11.2 GHz, respectively. Their corresponding peak gain values of 5.04 and 5.01 dBi. The results of the fabricated antenna in terms of bandwidth, gain, and radiation patterns are in close agreement with their simulated counterparts. On the account cavity-backed design, the antenna exhibits unidirectional and stable radiation patterns in both bands. Moreover, the uniplanar design gives additional flexibility of easy integration with other active/passive circuits. The proposed antenna can be a suitable candidate for dual-frequency operation in X-band (8-12 GHz), especially where small frequency-ratio is stringent.

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Ka-Band Dual-Frequency Single-Slot Antenna Based on Substrate Integrated Waveguide

Cited by 24 publications

References 14 publications

Low profile broadband substrate‐integrated waveguide to rectangular waveguide transition for W‐band automotive radar

Low profile broadband substrate‐integrated waveguide to rectangular waveguide transition for W‐band automotive radar

Differential SIW slot antenna array with intrinsic common‐mode rejection

Design of half‐mode substrate integrated cavity inspired dual‐band antenna

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