lora antenna

An original Mini-game inspired by gold miners and big fish. In fact, this game has been played for two weeks and is only uploaded until now. Some bugs have not been fixed yet. No way. Busy. Recently, I am engaged in a large-scale webgame with

Black and white coloring and then finding the maximum matching of the Bipartite Graph [cpp]# Include # Include # Include Using namespace std;Const int maxn = 40 + 9;Int n, m;Char a [maxn] [maxn];Struct{Int to, next;} E [maxn * 10*4];Int head [maxn *

Question: In a rectangle, there are n Cities '*'. Now all N cities need to cover wireless networks. If a base station is placed, it can cover at most two adjacent cities.How many base stations can be placed to ensure that all cities are wireless?

Question link: http://poj.org/problem? Id = 3020 First of all, ignore the one that may mislead others (maybe I have poor understanding, or I am misled by a little bit ). An H * w graph is provided. "*" indicates point of interest, and "O" ignores it.

There are n cities in a rectangular grid. Now all N cities need to be covered in wireless networks. For any base station, it can overwrite any adjacent two grids. So if we build a base station together, we can make all the cities covered and use the

This is a classic binary match. After the grid is marked as black and white, the grid containing '*' is then divided into two groups based on black and white to create edges. The final result is the total number of '*'-the number of matches. #

This question requires a more detailed understanding of binary matching! At the same time, you need to use a little bit of brains! Unlike hdu4185, the idea of creating a graph is that 4185 does not need to cover all vertices, but this question

The concept of radar was formed in the early 20th century. Radar is a transliteration of radar, abbreviated as radio Detection and Ranging. It is an electronic device that uses microwave band electromagnetic waves to detect targets. Composition The specific use and structure of various radars are different, but the basic form is the same, including five basic components: the transmitter, the transmitting antenna, the receiver, the receiv

This is for the only free mini PCI-E slot models, such models are also more common, especially in some international brands of models. With the mini pci-e slot, according to the method of the previous period to add 3G network card and mobile card slots, this time only need to install 3G antenna is done. Buy Antennas as needed The price of the notebook antenna is very cheap, the general double price will n

Design and simulate Wireless LAN device antennas [Date:] Source: /21IC Author: How Siang Yap and Bart Van Hecke of Agilent EEsof EDA Department [Font: large, medium, and small] 　 By adopting polarization diversity technology, low-cost PCB substrates can be used to create Wireless LAN equipment (WLAN) antennas with good receiver performance. This article will describe how to use the latest 3D electromagnetic field (EM) simulation tool to design and simulate a 2.4 GHz orthogon

I'm sure everyone knows about the three major wireless 3G standards. Therefore, there is a unique and advanced technology in the TD wireless technology, which is different from the other two technologies-smart wireless technology, that is, smart antenna technology. The Smart Antenna, formerly known as the Adaptive Antenna Array AAA and Adaptive

data, wireless optimization mainly includes the following aspects in the engineering hardware. 1. Relocation of the base station. The main point is to adjust some unreasonable base station to give full play to the function of the base station and achieve the coverage target. If a base station antenna is in front of a tall building seriously blocked, a base station antenna hanging high, resulting in seriou

I. Test conditions The beacon tower method is also known as the conventional far-field method. It is a common method to test the antenna pattern in the conventional field. This is the simplified frame of the antenna tested by the standard tower method. In the conventional far-field method test [20], to ensure the test accuracy, the following test requirements should be met: 1) the distance between the rec

The following is a small series for everyone to collect the "No line by the knowledge misunderstanding" all content, if you like small series of recommendations, please continue to pay attention to learning. More antennas, better routing? "The more the antenna coverage, the more the antenna more signal stronger, in short, the more the antenna routing is better

data connection Performance drops. The beauty of modern Wi-Fi devices is that they can be used together, so you can build networks with the best devices of the same type. For example, my network uses routers from one manufacturer, antennas from another manufacturer, printing services from a third manufacturer, and wireless customer devices from several different companies. You can think of it as a wireless United Nations: global cooperation makes your online life easier. Placement: Location, lo

In the cellular mobile communication system, the antenna is the converter of the circuit signal and the space radiation electromagnetic wave, and is the key component of the mobile communication system.From 2G to 4G, the mobile base station antenna has undergone omnidirectional antenna, directional single-polarized antenna