An UWB Antenna Design With Adjustable Second Rejection Band Using a SIR

Kim, Tae Woo; Hwang, Hee-Yong; Choi, Kyung K.

doi:10.1109/tmag.2013.2283774

Cited by 13 publications

(9 citation statements)

References 9 publications

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“…Another pair of radiating parasitic elements has been attached to the ground plane to radiate in such a way that cancels the radiation of the original UWB antenna at the WLAN band (5.15-5.825 GHz). Analyses show that these proposed parasitic elements are more general than those proposed in [6][7][8][9][10][11][12] since the proposed parasitic elements have predictable positions, and these predictions can be generalized for all wide slot antennas. Moreover, their simple structure does not complicate the antenna analysis significantly.…”

Section: Introductionmentioning

confidence: 93%

“…In recent years, researchers have used parasitic patches to generate band notches [6][7][8][9][10][11][12], instead of engraving slots, because the slots have more parameters such as the slot position and the slot width that need to be optimized than the parasitic patches which are less sensitive to these parameters. A parasitic arc-shaped strip opposite to the patch of a quasi-self-complementary monopole antenna has been used to protect the antenna from interference from Wireless Local Area Network (WLAN) [6], while an open loop resonator located on the back of a monopole antenna substrate has been used to reduce the WLAN interference [7].…”

Section: Introductionmentioning

confidence: 99%

“…Two sharp band notches produced by attaching two pairs of parasitic radiators to the radiating patch of a monopole antenna was also considered [8], while U-shaped stub and inverted T-shaped stub have been engraved on the trapezoidal patch on a monopole antenna to remove the WiMax and WLAN interference [9]. In addition, a miniaturized UWB Antenna has been attached with step impedance resonator to generate band notch at the WLAN applications [10] and WiMax and WLAN interference has been canceled by adding Tri-Arm resonator to a rectangular monopole antenna [11]. A pair of split ring resonator has been placed on both sides of the transmission line of a half circular monopole antenna to reduce the effect of X-band satellite radiation [12].…”

Section: Introductionmentioning

confidence: 99%

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A Generalized Concept for Band Notch Generation in Ultra-Wide Band Antennas

Alnahwi¹

2014

PIER C

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Abstract-In this paper a generalized concept to generate two band notches by adding parasitic elements having predictable positions to a wide slot ultra-wide band (UWB) antenna is proposed. The elimination of the wireless local area network (5.15-5.825 GHz) is achieved by a pair of radiating parasitic elements. Each element operates as a quarter wavelength resonator. A pair of half wavelength resonators in a form of a pair of parasitic strips is engraved in the ground plane side of the substrate directly behind the antenna tuning stub to break the coupling between the feed line and the slot, which represents the basic operation concept of the wide slot antenna, at the X-band satellite communications down link (7.25-7.745 GHz). Analysis shows that the proposed mechanisms are suitable for all wide slot antennas. The simulation and measured parameters are in good agreement, and results also show that the antenna has high voltage standing wave ratio and low gain inside the eliminated bands, while outside the notched bands it has a bandwidth that covers the entire UWB band and has very stable radiation characteristics.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Generalized Concept for Band Notch Generation in Ultra-Wide Band Antennas

Alnahwi¹

2014

PIER C

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“…High notch-band-edge selectivity using embedded bandstop filter [6] is also proposed. Meander Tshaped patch and stepped impedance structure [7,8] can also be used for band-rejection applications. Additionally, embedding slots in radiating patch or in ground plane [9][10][11][12][13][14] is a effective method to obtain band-rejection characteristic.…”

Section: Introductionmentioning

confidence: 99%

Design of an Uwb Antenna With Adjustable Rejection Bandwidth Using Novel Dual-T Square Resonator

Min¹,

Hou²,

Zhong³

et al. 2016

PIER Letters

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Abstract-A novel UWB antenna with adjustable rejection bandwidth is proposed and fabricated. The proposed antenna consists of a monopole and a novel dual-T square resonator. The results demonstrate that a wide rejection bandwidth from 10.4 to 11.5 GHz can be achieved, and the rejection bandwidth can be adjusted by transforming the dimensions of dual-T square resonator. Moreover, reflection coefficient curve with two poles at one rejected bandwidth is also obtained which is induced by the proposed novel square resonator. In addition, to explain the mechanism of adjustable rejection bandwidth, the analysis of parametric study and electric field distributions of the design are given. The total volume of the antenna is 27 mm × 19 mm × 1 mm. Compared to other recent works, a simpler structure, wider rejection bandwidth and more compact size are the key features of the proposed antenna. Owing to its adjustable bandwidth and simple structure, the proposed antenna can be used in UWB communications applications to suppress the radio-frequency interference.

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“…The y-axis represents the gain per stage of the prototypes. The statics indicates the V-band one-stage cascode amplifier in CMOS 90 nm and 130 nm are about 5 dB and 4.5 dB, respectively [3][4][5]. The conventional common source (CS) topology typically needs the transistor in CMOS 90 nm technology to achieve about 5 dB-gain per stage in V-band [2,6].…”

Section: Introductionmentioning

confidence: 99%

Band‐rejected UWB antenna based on two‐pole band‐stop filter

Choi

Hwang

2015

Micro & Optical Tech Letters

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The experimental circuit with its photos given in Figure 7 is built on the same substrate mentioned in Section 2. Figure 8 shows the measured and simulated frequency responses for the balanced BPF of Figure 5. The measured (simulated) in-band minimum DM insertion loss is 2.6 (1.9) dB with an FBW of 6.4% (6.2%). The peak around 8.16 GHz with a value of 219 dB is the suppressed TE 101 response. Two transmission zeroes are observed by the passband with the upper one due to the Hmicrostrip and the lower one due to intercoupling of the two degenerated modes. The BW of the measured CM rejection, which is considered larger than that of the case in Section 2, covers from 2.5 to 13.8 GHz with a rejection level of at the least 40 dB. CONCLUSIONThe design, realization, and experimental results of the proposed balanced BPF of (folded) SIW cavity is presented in this article. The validity of the circuit design and circuit performance is verified by measurements. The proposed balanced BPFs of dual-mode (folded) SIW cavity have considerable low insertion losses, which count for the ones from conductors and dielectric, the excessive lengths of transmission line, and the transition from the coaxial SMA to (folded) SIW cavity. The demonstrated BPF has achieved CM suppression with the in-band signal rejection levels larger than 40 dB.ABSTRACT: This study proposes a design method of proper two-pole band-rejection characteristics on a UWB antenna. This method has advantage of easy accomplishment of the required band-rejection characteristics of an UWB antenna, such as skirt characteristic, bandwidth, and ripple by directly applying the well-known band-rejection filter design procedure without hard iteration or optimization process using an EM-Simulator. A designed and fabricated antenna by the design method satisfied broad and sharp band-rejection characteristic at 5 GHz WLAN band with the full UWB band specifications with return losses less than 210 dB. The group delay variations are within 1.0 ns except the rejection band. The band-stop filter was placed around the radiating patch without degradation on the operation of the main UWB antenna so that it does not need any extra space for the adoption. The proposed method could be useful for designing various wideband antennas with excellent band rejection properties. V C 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:406-409, 2016; View this article online at wileyonlinelibrary.com.ABSTRACT: The common source amplifier design with the inductive self-biasing is presented. The proposed design can establish the biasing and the impedance matching with two transmission line elements. Both theoretical and experimental verifications confirm that the three-stage prototype achieves a gain per stage of 6.1 dB, and the output P 1dB of 1.6 dBm with 29 mW power consumption at 53 GHz based on the standard CMOS 130 nm 1P8M technology. V C 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:409-413, 2016; View this article online at wileyonlinelibrary.com.

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An UWB Antenna Design With Adjustable Second Rejection Band Using a SIR

Cited by 13 publications

References 9 publications

A Generalized Concept for Band Notch Generation in Ultra-Wide Band Antennas

A Generalized Concept for Band Notch Generation in Ultra-Wide Band Antennas

Design of an Uwb Antenna With Adjustable Rejection Bandwidth Using Novel Dual-T Square Resonator

Band‐rejected UWB antenna based on two‐pole band‐stop filter

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