Modeling of Stepped-Impedance Slot Antenna

Wang, Chien-Jen; Chen, Ling-Ting

doi:10.1109/tap.2013.2291906

Cited by 23 publications

(14 citation statements)

References 7 publications

(15 reference statements)

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“…Compared with the slot antennas in [1][2][3][4][5], the proposed interdigital capacitor loaded slot antenna possesses an excellent balance among size, peak gain and FBW. The proposed slot antenna structure has a much more compact size than other antennas except those in [1] and [5].…”

Section: Accordingmentioning

confidence: 99%

“…However, they always lead to very low gain. Loop loaded slot [2], stepped-impedance slot [3] and Cshaped ring embedded slot [4] are all found effective to reducing antennas' size. However, further size eduction is still required.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike other reported antennas in [1][2][3][4][5], not only transmission line model but also full lumped model is established to gain an insight into the size reduction mechanism of the proposed antenna. The theoretical analysis about equivalent-circuit model indicates that the size-miniaturization effect is brought by the loaded capacitor which brings more capacitive elements to the slot.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Interdigital Capacitor Loaded Slot Antenna With Compact Size

Cheng¹,

Li²,

Liu³

et al. 2016

PIER Letters

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Abstract-A new compact interdigital capacitor loaded open slot antenna and its lumped model are presented in this letter. Equivalent model analysis shows that the introduction of the interdigital structure increases the capacitive element of the slot and thus reduces the operating frequency of the slot antenna. And the antenna operating frequency as well as its size can be easily reduced by simply increasing the capacitance of the interdigital capacitor and the characteristic impedance of the slot. Experimental results of the exemplary antenna agree well with those of the full-wave simulation, proving that the proposed open slot antenna structure is viable in antenna design.

show abstract

Section: Accordingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Interdigital Capacitor Loaded Slot Antenna With Compact Size

Cheng¹,

Li²,

Liu³

et al. 2016

PIER Letters

View full text Add to dashboard Cite

show abstract

“…Whereas the antennas proposed in [5] and [6] are narrow band with good isolation, the antenna in [6] is UWB but has an isolation of 14 dB. In comparison, the proposed antenna is designed on a single substrate, utilizes a stepped slot structure studied in detail in [7][8][9] and offers ultrawide impedance bandwidth with good isolation.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Polarized Square-Ring Slot Antenna for UWB, Imaging, and Radar Applications

Krishna

Kumar²

2016

Antennas Wirel. Propag. Lett.

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In this paper, a dual polarized slot antenna for ultra wideband applications is proposed. The slot has an overall shape of a square ring whose four arms are identical and stepped rectangular. While two adjacent arms of the ring are microstrip fed and are responsible for the orthogonally polarized fields, the other two arms are introduced to make the structure symmetric and reduce the cross polarization. The impedance matching and isolation are controlled by properly shaping the slot arms and the feed section and by insertion of narrow metallic and slot stubs. The measured impedance bandwidth is 120% (3.0 GHz to 12.0 GHz). The isolation is better than 20 dB over most of the band. With the help of radiation patterns and aperture electric field distribution, the dual polarized nature of the antenna is justified. The antenna will be useful for UWB MIMO transmission, polarimetric radar and medical imaging applications.

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“…The resonant frequency of the stepped slot structure depends not only upon the individual slot lengths, but also on the ratio of their characteristic impedances (slot width) [12]. To reduce the problem complexity, formulas (1) and (3) are just given approximate calculation without considering the impedance ratio.…”

mentioning

confidence: 99%

A Wideband U-Shaped Slot Antenna and Its Application in MIMO Terminals

Chen

Chu

2016

Antennas Wirel. Propag. Lett.

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a wideband microstrip multiple-input-multipleoutput (MIMO) antenna with U-shaped slot is presented in this paper. To widen the impedance bandwidth, a uniform and stepped U-shaped slot antennas are sequentially investigated. Two types of resonant modes are excited, including slot mode and monopole mode. Then, additional multiple slots embedded inside the U-shaped slot are employed to further widen the bandwidth. The proposed slot antenna features wide bandwidth (109%) and compact slot size (0.16 λ g × 0.27 λ g , where λ g is the guided wavelength at the lowest operating frequency) simultaneously. The proposed slot antenna element is then applied in the MIMO antenna system. Both the two antennas are suitable for handheld devices, covering GPS/GSM1800/LTE/UMTS/WLAN/WiMAX/ UWB (lower) band.  Index Terms-slot antenna, stepped slot, MIMO antenna, wide bandwidth 1536-1225 (c)

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Modeling of Stepped-Impedance Slot Antenna

Cited by 23 publications

References 7 publications

An Interdigital Capacitor Loaded Slot Antenna With Compact Size

An Interdigital Capacitor Loaded Slot Antenna With Compact Size

A Dual-Polarized Square-Ring Slot Antenna for UWB, Imaging, and Radar Applications

A Wideband U-Shaped Slot Antenna and Its Application in MIMO Terminals

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