Micro-Strip Line

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A New Approach Based on Iterative Method for the Characterization of a Micro Strip Line with Thick Copper Conductor

A New Approach Based on Iterative Method for the Characterization of a Micro Strip Line with Thick Copper Conductor

The simulation result (Figure 8) shows a comparison between a micro-strip line with a thick conductor and be- tween a microstrip line with a conductor without thickness. These results show that our model simulation results find are identical with those calculated by Ansoft HFSS software, for a thick conductor. These results show the effectiveness of the correction made by our Model to the iterative method (FWCIP).

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Self Sensing Curved Micro Strip Line Method for Damage Detection of CFRP Composites

Self Sensing Curved Micro Strip Line Method for Damage Detection of CFRP Composites

Authors have published research articles of self-sensing TDR method [16]-[19]: carbon fibres are used as a transmission line as well as structural reinforcements. The self-sensing TDR method reduces number of required electrodes for damage detections although the sensitivity of detection is sacrificed. A parallel late transmission line [16] [17] and a micro-strip line (MSL) method [18] is adopted to obtain impedance matching with a coaxial cable. The parallel plate model, however, requires a cumbersome conductive plate, and the single MSL method detects damage only narrow space around the transmission line. In the present study, therefore, a long curved MSL is experimentally investigated as an impedance-matched transmission line for detection of damage of a CFRP laminate in wider area. Fiber breakage is simulated as a hole made by drilling. As a CFRP laminate has orthotropic electric conductance and the electric properties of a CFRP laminate at the high frequency is not cla- rified, the effect of the orthotropic conductance is experimentally investigated in the present study.
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Enhancement Gain of CMOS PA using Micro strip line for Millimeter wave applications

Enhancement Gain of CMOS PA using Micro strip line for Millimeter wave applications

The common source (CS) and common gate (CG) topologies are two popular architecture choices which are widely used for PA design. Common source structure is used in this circuit. Meanwhile, in order to achieve the gain of more than 20 dB, power amplifier use single-ended two-stage amplification form. Single-ended topology can be avoided application of the balanced-unbalanced transformer [6], which could simplify the integration process and improve the cost efficiency per unit of PA. For matching using LC networks as input and output achieves PAE up to 50% but if adopted 50Ω transmission line like micro-strip, CPW etc then it is possible to achieve PAE of 80%. In a micro-strip line, conductor losses increase with increasing characteristic impedance due to the greater resistance of narrow strips. Conductor losses follow a trend that is opposite to radiation loss with respect to W/h. The power handling capacity of a micro-strip is limited by heating because of ohmic and dielectric losses and by dielectric breakdown. An increase in temperature due to conductor and dielectric losses limits the average Power of the Micro-strip line, while the breakdown between the strip conductor and ground plane limits the peak Power. In order to determine the optimum load, the transistor should have its input matched to the source using a micro-strip line at the centre frequency of the operating band is connected to a variable load resistance at the output node.
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Study on a Miniature UWB Wafer-Dipole Printed Antenna Fed by Balanced Micro-Strip Line

Study on a Miniature UWB Wafer-Dipole Printed Antenna Fed by Balanced Micro-Strip Line

total antenna can be treated as an integrated system composing with multi-resonant elements, which can realize broadband characteristic. Further simulation indicates the dimensions of radiated element and feeding element would influence antenna impedance characteristic. Parameters including the wafer’s diameter (d), spacing between wafers (g) and width of feeding line (w f ) can decide antenna performance. Due to the current distribution on wafers presents a form of standing wave resonance so that the size of antenna, namely, d, can decide the lowest operating frequency, and their relation can be obtained from simulation, shown in formula (1). Fig. 4 presents it can use formula (1) to figure out d’s value, where λ is the corresponding free- space wavelength of the lowest operating frequency.
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Design And Analysis Of Indoor Multiband Antenna In Signal Boosting Of Mobile Communication Systems

Design And Analysis Of Indoor Multiband Antenna In Signal Boosting Of Mobile Communication Systems

Abstract— Different shapes of the antennas are used in mobile communication system. But we are interested in design and analysis of multiband antenna for Mobile wireless communication system in two bands. These kind of antennas can be largely applied or signal boosters in order to boost the mobile signal at low network places . This antenna is fed by micro strip line and consist of two conductors and radiating element which resonate in two frequencies and covers (1Ghz-3Ghz) frequency Bands .In this paper we have designed and simulated multiband antennas using Advanced Design System software(ADS) which is used to compute the gain return loss, radiation pattern and of the proposed antenna.
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Design of Compact U-Shaped Microstrip Slot Antenna for WLAN, wimax and Radar Applications using ADS software

Design of Compact U-Shaped Microstrip Slot Antenna for WLAN, wimax and Radar Applications using ADS software

In present years Micro strip patch antenna is predominately worn in numerous wireless communication system and Radar applications. In this paper a projected configuration of U shaped micro strip slot antenna for high frequency application is designed and simulated. This projected Antenna with a reduced size of 28.3 x 37 mm is intended with FR4 Substrate by using the micro strip line feeding techniques for Micro strip patch is with a stamped ‘U’ shaped slot. This Antenna provides a preferential impedance Bandwidth along with an uni directional Radiation Pattern. The antenna is intended for operating frequency 6.33 GHz and dielectric constant 4.4 by using advanced design Systems simulation software. Projected antenna is deliberate for wireless local area network (WLan).
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The Design, Optimization and Characterization of 7GHz Ultra Low Noise Figure Amplifier using Hybrid MIC Technique for Satellite Mobile Applications

The Design, Optimization and Characterization of 7GHz Ultra Low Noise Figure Amplifier using Hybrid MIC Technique for Satellite Mobile Applications

[12] Vidhale, B. R., & M.M.Khanapurkar. (2016). Design of ultra wideband low noise amplifier with the negative feedback using micro strip line matching structure for multiple band application and its simulation based performance analysis. International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET), Chennai, doi: 10.1109/WiSPNET.2016.7566461, 1845-1848 .

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Development and Study on L Slot Microstrip Patch Antenna for GSM/ZIGBEE Applications

Development and Study on L Slot Microstrip Patch Antenna for GSM/ZIGBEE Applications

antenna [7]. In this paper the patch dimensions taken along X-axis and Y-axis is 0.15 cm and the substrate dimensions taken along X-axis and Yaxis is 1 cm respectively. The substrate thickness is 0.03 cm. The feed location along X and Y axis are 0 and 0.05 respectively. The coaxial inner and outer radius is 0.004 and 0.014 respectively and coaxial feed length is 0.04 cm. For good performance, a substrate having a low dielectric constant is desirable since this provides better efficiency, larger bandwidth and better radiation. The design also checks for maximum power transfer by matching the feed line impedance to the impedance of the patch antenna [8]. The different feeding techniques used for impedance matching are micro strip line, coaxial probe, Proximity coupling and aperture coupling. Micro strip line: In this Impedance matching is easier. And feed can be fabricated on some
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DESIGN AND DEVELOPMENT OF X- BAND OSCILLATOR FOR FM TELEMETRY TRANSMITTER

DESIGN AND DEVELOPMENT OF X- BAND OSCILLATOR FOR FM TELEMETRY TRANSMITTER

The above figure 3.2 represents the modified oscillator by using series feedback; in order to oscillate it should be in unstable region here is using one micro Strip Line and 1Pf Capacitor as a feedback element to make the transistor into unstable region. By using these configuration the stability factor reduced, which is desirable for oscillator design. Modified values of oscillator are indicated in the below Table 4

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Design and Simulation of Dual Band Microstrip Patch Antenna with Defected Ground Structure

Design and Simulation of Dual Band Microstrip Patch Antenna with Defected Ground Structure

ABSTRACT: this paper focuses in the design of a dual-band microstrip patch antenna (MSA) for dual frequency operation using Defected Ground Structure (DGS). The DGS is the etching done in the ground plane in order to tune the antenna in two different frequencies. The proposed antenna has a rectangular patch of dimensions 12.75mm x 10.75mm with rectangular-shaped strips cut in ground and is fed by a micro strip line, for achieving additional resonances, reduced return losses, obtaining VSWR (Voltage Standing Wave Ratio) value near 1 and reduced antenna size. The designed antenna is also of reduced cost. Therefore proposed dual band antenna can be effectively used for C- band and X-band wireless applications.
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DESIGN OF DUAL BAND ANTENNA FOR INDIAN REGIONAL NAVIGATIONAL SATELLITES

DESIGN OF DUAL BAND ANTENNA FOR INDIAN REGIONAL NAVIGATIONAL SATELLITES

The main advantage of this type of feeding scheme is that the feed can be placed at any desired location inside the patch in or- der to match with its input impedance. This feed method is easy to fabricate and has low spurious radiation. However, its major disadvantage is that it provides narrow bandwidth and is difficult to model since a hole has to be drilled in the substrate and the connector protrudes outside the ground plane, thus not making it completely planar for thick substrates (h > 0.02λ0 ). Also, for thicker substrates, the increased probe length makes the input impedance more inductive, leading to matching problems [2]. It is seen above that for a thick dielectric substrate, which provides broad bandwidth, the micro strip line feed and the coaxi- al feed suffer from numerous disadvantages. The non-contacting feed techniques which have been discussed below, solve these problems.
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Compact Open-Ended L-Shaped Slot Antenna with Asymmetrical Rectangular Patch for UWB Applications

Compact Open-Ended L-Shaped Slot Antenna with Asymmetrical Rectangular Patch for UWB Applications

Figures 6(a) and (b) show the simulated return losses with vital parameters of the proposed antenna for UWB performances. From these simulation results, it is obvious that the rectangular patch asymmetrically fed by the 50 Ω micro-strip line have a significant effect on the antenna’s impedance bandwidth. The poor matching condition at upper UWB band can be obviously improved by the offset distance d from Figure 6(b).

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Design of U Shaped Microstrip Patch Antenna for Wimax Application

Design of U Shaped Microstrip Patch Antenna for Wimax Application

In this technique by etching the wide slot as fractal shapes, it is experimentally found that the operating bandwidth can be significantly enhanced, and the relation between the bandwidth and the iteration order (IO) and iteration factor (IF) of the fractal shapes is experimentally studied. Experimental results indicate that the impedance bandwidth, defined by 10 dB reflection coefficient, of the proposed fractal slot antenna can reach an operating bandwidth of 2.4 GHz at operating frequencies around 4 GHz, which is about 3.5 times that of a conventional micro strip-line-fed printed wide-slot antenna. It also achieved 2dB gain bandwidth of at least 1.59 GHz. It is also widely used in WLAN and WiMAX applications. But it is difficult to calculate the iteration order and iteration factor to obtain the desired fractal shape.[6].
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Coplanar-Pgl Transitions on High Resistivity Silicon Substrate in the 57-64 GHz
 Band and Influence of the Probe Station on the Performances

Coplanar-Pgl Transitions on High Resistivity Silicon Substrate in the 57-64 GHz Band and Influence of the Probe Station on the Performances

A few transitions have been designed in order to excite the Goubau mode. The PGL lines have already been characterized for higher frequencies by means of transitions: PGL to 50 Ω micro- strip line circuit transitions on ceramic substrate (0.254 mm alumina), dedicated to feed PGL loads and power divider/combiner, present, for a 16 mm total length of the back-to-back structure, a 4 dB transmission parameter from 40 GHz to 60 GHz [12], or dedicated to feed couplers with short range (60 GHz) radio [13], a coplanar-Goubau Line transition on Duroid 5880 provides a 5–10 dB insertion loss and a return loss better than −12 dB from 140 GHz to 220 GHz for a back-to-back structure [14] and recently a “smooth” transition to match a periodic leaky-wave antenna at millimeter wave frequencies with PGL impedance to a coplanar waveguide [15]. The results for the transitions to excite the PGL mode [12–15] seem less efficiency than for the other ones [2–11]: the PGL doesn’t need a ground plane, contrary to the coplanar or micro-strip modes and the conversion from coplanar or micro-strip modes to PGL mode generates other modes or losses.
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A Survey on Patch Antenna Bandwidth Enhancement through Feed Techniques and Novel Proximity Slot Coupling Approach

A Survey on Patch Antenna Bandwidth Enhancement through Feed Techniques and Novel Proximity Slot Coupling Approach

ABSTRACT: Many applications of micro strip antenna are constricted by their innate narrow bandwidth. In this paper a survey on the different feeding technique, which are micro strip line feed, coaxial plane feed, proximity coupled feed and aperture couple feed, for wireless micro strip antenna is done. Micro strip line and coaxial probe feeds are contacting scheme, in which RF power directly to the radiating patch. Proximity and Aperture coupled feeds are non contacting schemes, in which electromagnetic field coupling is done to transfer power between the micro strip line and the radiating patch. In this paper, a new approach is projected to design inset feed micro strip antenna with slots in it to develop the antenna bandwidth. The input impedance matching method for antenna is predominantly vital for a feed technique. The design of slotted micro strip antenna on a substrate of thickness 11mm that give wideband features is based on embedding an inset look analogous proximity L shape feed to improve bandwidth. The Method of Moments (MOM) base IE3D software with the method of moment (MOM) ensemble has been used to in the circular patch performance comparison for the improvement of the impedance bandwidth and the power radiated with slots on the same physical dimensions.
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A REVIEW ON DUAL NARROWBAND IN DIELECTRIC RESONATOR ANTENNA

A REVIEW ON DUAL NARROWBAND IN DIELECTRIC RESONATOR ANTENNA

Before the introduction of the Dielectric Resonator Antenna, it was used for filter applications in microwave circuits. DRA have been proposed as an alternative to the conventional conductor antennas. In high frequency application, as the frequency increases, ohmic losses in conventional antenna increases. DRA has so many advantages features such as compact size, low loss, high efficiency, light weight, ease of excitation, feeding mechanism and versatility in the shape. DRA radiate throughout their entire volume and therefore the amount of energy radiated is larger than the energy stored in their near fields. The basic DRA structure is consist of a DR element of a specific shape. DRA excited by a single feed such as a micro strip line, coplanar waveguide, aperture or coaxial cable. For the simple geometry, permittivity of the DRA decreased to achieve wider bandwidth. The most common method of feeding mechanism is the aperture –coupled arrangement. There are three basic shapes available for common design, including rectangular, cylindrical, and spherical.
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Design and Analysis of Fractal Triangle Microstrip Patch Antenna with Strip Line Feed for Dual-Band Frequency

Design and Analysis of Fractal Triangle Microstrip Patch Antenna with Strip Line Feed for Dual-Band Frequency

The antenna is planar fractal triangular patch antenna with three iteration fed by micro strip line width of micro strip is 3 mm for match impedance with 50 ohms of transmission line, FR4 substrate with dielectric constant (εr) 4.4, loss tangent (tanδ) 0.025 and 1.59 mm of thickness (h) with infinite ground structure. The transmission line model is applicable to infinite ground planes only. However, for practical concern, it is necessary to have a finite ground plane. It has been shown that same results for finite and infinite ground plane can be obtained if the size of the ground plane is greater than the patch dimensions by approximately six times the substrate thickness all around the periphery. The Dimension for the antenna is given in following Table 1:
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A Review on Ultra wideband Micro Strip Patch Antenna

A Review on Ultra wideband Micro Strip Patch Antenna

For achieve the contacting feed method, the RF power is directly fed to micro strip line which is used as connecting element for radiating patch. Electromagnetic field and coupling is used for energy transfer between the micro strip line and the radiating patch. Patch antenna can be fed by coaxial probe or inset micro strip line. Coaxial probe feeding is used for active antennas and line feeding is used for high-gain micro strip array antennas. Here position of probe and inset length regulate with respect to the input impedance. [3]- [4]
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RFID Tag Antenna for Metallic or Non-Metallic Surfaces

RFID Tag Antenna for Metallic or Non-Metallic Surfaces

Abstract—A capacitively fed rectangular patch antenna for anti-metal RFID tag was studied. It was found that by using capacitively feeding and a thin micro-strip line, the input impedance could be stabilized with respect to ground plane size. As a result, the reading range degradation was avoided, and the presented antennas have almost the same reading range when used on metal or non-metal objects. The mechanism was explained by a basic antenna design and a transmission line model. Then a more practical compact design having much smaller size was presented. Prototypes of both the basic design and the compact design were fabricated and tested. The testing results validated the effectiveness of the designing method.
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Broad Band Propinquity Coupled Feed Line Micro strip Blotch Antenna for 5G Applications

Broad Band Propinquity Coupled Feed Line Micro strip Blotch Antenna for 5G Applications

B. Result of planar array configuration of the micro- strip patch antenna with proximity feed technique. An epic insignificant exertion, high-gain millimeter-wave Projection is been shown. The 6 × 5 region coupled planar group fitting for 5G cell solicitations. Extra-ordinary comprehension among impersonated and assessed ouput comes that the analysed antenna structure is capable in achieving broad-band appearances and low side flap levels with a diminished size. From CST tool the results are shown further in below figures are of return loss, gain, directivity, VSWR.
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