High Performance Microstrip Low Pass Filter for Wireless Communications

Roshani, Sobhan; Golestanifar, Alireza; Ghaderi, Amirhossein; Siahkamari, Hesam; Abbott, Derek

doi:10.1007/s11277-017-5123-1

Cited by 9 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diplexers are important blocks in microwave circuits and communication devices [1][2][3][4][5][6][7][8] like; GSM [9], GPS and WLAN [10,11], antenna [12], radars [13], multiple-frequency devices [14], Diplexers consist of three-ports, which separates input signals into two different pathways. The usual method to design and construct of diplexers is connecting filters together.…”

Section: Introductionmentioning

confidence: 99%

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Tahmasbi

Razaghian

Roshani

2021

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

In this paper, two bandpass-bandpass diplexers, based on L-, T-and rectangular-shaped resonators are designed and analyzed, which are used to design a novel hybrid power amplifier (HPA) in 5G applications. By using the designed diplexers, the presented hybrid power amplifier structure can operate at two desired frequencies in two desired classes of operation. The equivalent circuits and transfer functions are extracted to study the behavior of the filters responses.Query However, the proposed analysis can be used to locate transmission zeros at desired frequencies, which can ease the design procedures of the diplexers at any desired frequency. The proposed HPA and diplexers are designed at 1.5 GHz and 2.1 GHz operating frequencies. To verify the results, one of the proposed diplexers is fabricated, in which the obtained measured results are in good agreement with the simulated results. The insertion losses for the fabricated diplexer are less than 0.7 dB and the isolation value is achieved better than 27 dB in the operating frequencies. The overall sizes of the proposed diplexers are about (0.165k g 9 0.198k g ) and (0.75k g 9 0.07k g ). The results of the designed HPA show that the proposed HPA has desirable specifications. The drain efficiency (DE) and power added efficiency (PAE) of the proposed HPA are 60% and 53% at 1.5 GHz operating frequency while, the DE and PAE are 65% and 51.5% at 2.1 GHz respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Tahmasbi

Razaghian

Roshani

2021

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

show abstract

“…The group delay of presented LPF is very flat because the maximum mutability in the proposed LPF at 55% passband is only 0.04 ns. Comparisons between the designed LPF performance and similar reported structures [14][15][16][17][18][19][20][21][22][23][24][25][26][27] are shown in the Table . In this table, the sharpness of transition band is calculated as follows [13]:…”

Section: Measured and Simulated Resultsmentioning

confidence: 99%

Compact microstrip lowpass filter with ultrasharp response using a square-loaded modified T-shaped resonator

Pirasteh¹,

Roshani²,

Roshani³

2018

Turk J Elec Eng & Comp Sci

Self Cite

View full text Add to dashboard Cite

A miniaturized lowpass filter (LPF) with ultrasharp response, good figure of merit (FOM), and simple structure is proposed. The designed structure is fabricated and measured with a 2.9 GHz cutoff frequency. The proposed LPF consists of high impedance lines that are loaded by three similar resonators and two uniform suppressing cells. The filter size is only 0.08 × 0.23 λ g, which indicates small circuit size. The proposed design exhibits good features, such as an ultrasharp roll-off rate of about 1609 dB/GHz and a good FOM of 162,820. The insertion loss of the proposed LPF is less than 0.14 dB in the passband. With these excellent obtained specifications and flat group delay, this structure can be used in wireless antennae.

show abstract

Design and Modeling of a Compact Power Divider with Squared Resonators Using Artificial Intelligence

Roshani

Jamshidi

Mohebi

et al. 2020

Wireless Pers Commun

View full text Add to dashboard Cite

High Performance Microstrip Low Pass Filter for Wireless Communications

Cited by 9 publications

References 20 publications

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Design of bandpass–bandpass diplexers using rectangular-, T-, and L-shaped resonators for hybrid power amplifier and 5G applications

Compact microstrip lowpass filter with ultrasharp response using a square-loaded modified T-shaped resonator

Design and Modeling of a Compact Power Divider with Squared Resonators Using Artificial Intelligence

Contact Info

Product

Resources

About