Resonant Cavities for Duplex Filters in VHF Repeaters: Analysis, Implementation, and Testing

Abstract

In this paper I presented the role of filters duplex in structure of voice repetors, operating principles specific subassembly transmission and subassembly reception. I wanted to do a filter, for building a repeater duplexer for band 144Mhz - 146Mhz. I described how to make a cavity. Leaving the wiring diagram and I checked, depending on the size, if designed cavity can be used for VHF frequencies corresponding. I examined the response of this filter, for receiving and transmitting frequencies, specific to repetor that will be made.

Authors and Affiliations

Gheorghe SAUCIUC

Keywords

Related Articles

Convergence Rate and Steady-State Error Improvement in Acoustic System Identification Using the Combination of Linear NLMS Adaptive Filters

The paper proposes the combination method applied on adaptive linear filters in acoustic system identification. The filters are based on the Normalized Least-Mean-Square algorithm and the combination is applied on two f...

On Using DNA Distances And Consensus In Repeats Detection

Sequence repeats are the simplest form of regularity and analyzing repeats can lead to first clues to evidencing new biological phenomena. Many of the methods for detecting repeated sequences are part of the digital sign...

Simulation Of DWDM Communication System At 8.10 Gbit/s Using Continuum Source In The Transmitter

In this paper, the 8-channel DWDM communication system at 8.10 Gbit/s is demonstrated. Laser diodes used in conventional DWDM link have been replaced by continuum covering C-band of optical communication window. If the...

Battery and Super-Capacitor Charger Based on LLC Converter

The need for a small economical power supply for battery chargers has increased in the last couple of years. A LLC converter is used as a battery charger due to its low EMI noise, high power integration and high efficien...

On The Tuning Performance of an Active RF Bandpass Filter

The paper describes a new principle of independent frequency and quality factor tuning suitable for simulated inductors based active RF filters. The method makes use of two dc decoupled negative resistances in order to...

Download PDF file
  • EP ID EP130406
  • DOI -
  • Views 137
  • Downloads 0

How To Cite

Gheorghe SAUCIUC (2012). Resonant Cavities for Duplex Filters in VHF Repeaters: Analysis, Implementation, and Testing. Acta Technica Napocensis- Electronica-Telecomunicatii (Electronics and Telecommunications), 53(3), 25-29. https://europub.co.uk./articles/-A-130406